Biomedical Engineering Online

Papers
(The median citation count of Biomedical Engineering Online is 3. The table below lists those papers that are above that threshold based on CrossRef citation counts [max. 250 papers]. The publications cover those that have been published in the past four years, i.e., from 2022-08-01 to 2026-08-01.)
ArticleCitations
Object recognition and localization enhancement in visual prostheses: a real-time mixed reality simulation145
Combining crowd-sourcing, census data, and public review forums for real-time, high-resolution food desert estimation127
3D technology facilitates transoral endoscopic precision surgery of parapharyngeal space tumors94
Interpretable classification for multivariate gait analysis of cerebral palsy87
Attention-enhanced residual U-Net: lymph node segmentation method with bimodal MRI images75
Correction: The value of the wireless stethoscope in patients with COVID-19 infection in a makeshift hospital72
A hybrid model for detecting motion artifacts in ballistocardiogram signals68
Multi-modal body part segmentation of infants using deep learning66
Advancements in osteoblast sourcing, isolation, and characterization for dental tissue regeneration: a review65
Protein adsorption at material interface: mechanistic design framework for engineering ceramic scaffolds for bone repair applications62
Technical and clinical feasibility of single-use gastroscopy with real-time AI-based quality monitoring and single-use colonoscopy: a prospective two-center study52
Comparative analysis of electrical signals in facial expression muscles51
Antioxidant scaffolds for enhanced bone regeneration: recent advances and challenges51
Advances in 3D bioprinting for medical application: opportunities and challenges50
AI-integrated nanomaterial-based biosensors for biomedical diagnostics: engineering design, signal processing, and clinical translation48
Effects of cardiac decellularized extracellular matrix hydrogel as a functional myocardial patch on the growth of cardiomyocytes45
Rehabilitation assessment approaches and technologies to measure gaze behaviour during walking in older adults and central neurological populations: a scoping review protocol43
Special collection in association with the 2023 International Conference on aging, innovation and rehabilitation39
Performance of deep-learning models incorporating knee alignment information for predicting ground reaction force during walking39
A novel in-bed body posture monitoring for decubitus ulcer prevention using body pressure distribution mapping37
Sleep postures monitoring based on capacitively coupled electrodes and deep recurrent neural networks37
A method based on non-ionizing microwave radiation for ancillary diagnosis of osteoporosis: a pilot study35
Detection of Alzheimer and mild cognitive impairment patients by Poincare and Entropy methods based on electroencephalography signals33
Machine learning models of segmentation in acute ischemic stroke: a systematic review and meta-analysis32
Super-resolution reconstruction for early cervical cancer magnetic resonance imaging based on deep learning31
4D printing: innovative solutions and technological advances in orthopedic repair and reconstruction, personalized treatment and drug delivery30
Comparison of deep transfer learning algorithms and transferability measures for wearable sleep staging30
Early prediction of hemodialysis complications employing ensemble techniques28
Ses: a Swin-Unet Edge-aware Segmentation network for uterine fibroid ultrasound images28
Precision and reliability study of hospital infusion pumps: a systematic review28
Microdamage in biological hard tissues and its repair mechanisms27
Acquisition of a single grid-based phase-contrast X-ray image using instantaneous frequency and noise filtering27
Correction: Detection and analysis of long noncoding RNA expression profiles related to epithelial–mesenchymal transition in keloids27
StairNet: visual recognition of stairs for human–robot locomotion27
Influence of m6A regulatory factor related to immune microenvironment on the prognosis of prostate cancer27
Synthesizing multi-frame high-resolution fluorescein angiography images from retinal fundus images using generative adversarial networks26
Four-phase CT lesion recognition based on multi-phase information fusion framework and spatiotemporal prediction module26
Early detection of myocardial ischemia in resting ECG: analysis by HHT26
Differences in intestinal motility during different sleep stages based on long-term bowel sounds26
Effect of a rigid ankle foot orthosis and an ankle foot orthosis with an oil damper plantar flexion resistance on pelvic and thoracic movements of patients with stroke during gait25
Medial tibial plateau sustaining higher physiological stress than the lateral plateau: based on 3D printing and finite element method25
Feasibility of a live-stream dance class for people with chronic stroke25
Beyond timing and step counting in 360° turning-in-place assessment: a scoping review24
Machine learning application for classification of Alzheimer's disease stages using 18F-flortaucipir positron emission tomography23
Targeted delivery of irinotecan to colon cancer cells using epidermal growth factor receptor-conjugated liposomes23
Using 2D U-Net convolutional neural networks for automatic acetabular and proximal femur segmentation of hip MRI images and morphological quantification: a preliminary study in DDH23
Value of a radiomics model based on high-resolution large matrix target reconstruction images in predicting the invasiveness of lung adenocarcinoma with pure ground-glass nodules23
Correction: CT radiomics‑based explainable machine learning model for accurate differentiation of malignant and benign endometrial tumors: a two‑center study22
Dual-modal in vivo assessment for electrophysical and hemodynamic characteristics of cerebral edema induced by lipopolysaccharide22
Multiscale reconstruction of bronchus and cancer cells in human lung adenocarcinoma22
Machine learning algorithms for predicting quality of life improvements after digital orthodontic treatment: a retrospective analysis21
Meta-analysis of the effects of compressive stress on osteoblasts and osteoclasts growth21
Risk factors and predicted model for clinical relapse after antiviral therapy cessation in chronic hepatitis B patients: a retrospective real-world data analysis20
Artificial intelligence in microbiology: implications for metagenomics, diagnostics, and AMR surveillance20
Lesion detection in age-related macular degeneration with a multi-modal imaging and machine learning approach20
Patients ‘ perspectives on bone replacement materials in a German university hospital setting20
Predictive value of CT imaging features on the risk of hemorrhagic transformation after mechanical thrombectomy for acute ischemic stroke with large vessel obstruction20
Emerging technologies in airway management: a narrative review of intubation robotics and anatomical structure recognition algorithms19
Comparison of plugin and redundant marker sets to analyze gait kinematics between different populations19
Synergistic effects of dexamethasone and vitamins D and K on mesenchymal stem cell differentiation19
Classification of vasovagal syncope from physiological signals on tilt table testing19
A review of recent advances in exosome-mediated drug delivery for regenerative therapy and immunomodulation18
Development of a deep learning-based MRI diagnostic model for human Brucella spondylitis18
Automated diagnosis of schizophrenia based on spatial–temporal residual graph convolutional network17
Feasibility and anteversion accuracy of a patient-specific instrument for femoral prosthesis implantation in total hip arthroplasty17
Enhancing laparoscopic visibility: efficient surgical smoke clearance innovatively using nebulization technology17
Classification of gestational diabetes mellitus placental histopathological images based on MONAI and improved GAMatrix-YOLOv817
Diagnostic ultrasound irradiation combined with microbubbles to modulate carotid body activity for the treatment of obesity-related hypertension in rabbits17
Identification of Alzheimer’s disease brain networks based on EEG phase synchronization17
Implantable antennas for biomedical applications: a systematic review17
Expression of periostin in the epithelium of cholesteatoma with different degrees of ossicular chain destruction and its clinical value in predicting postoperative hearing recovery17
Screening ovarian cancer by using risk factors: machine learning assists16
Correction: A glaucoma micro-stent with diverging channel and stepped shaft structure based on microfluidic template processing technology16
Performance and limitation of machine learning algorithms for diabetic retinopathy screening and its application in health management: a meta-analysis16
The use of a convolutional neural network to automate radiologic scoring of computed tomography of paranasal sinuses16
Parameter subset reduction for imaging-based digital twin generation of patients with left ventricular mechanical discoordination16
Pulse wave-driven machine learning for the non-invasive assessment of coronary artery calcification in patients with end-stage renal disease undergoing hemodialysis16
Comprehensive review of composition, properties, clinical applications, and future perspectives of calcium-enriched mixture (CEM) cement: a systematic analysis16
The state of the art and future trends of root canal files from the perspective of patent analysis: a study design16
Cholesterol homeostasis and pathway enrichment in post-revascularization recovery16
Voxel-wise body composition analysis using image registration of a three-slice CT imaging protocol: methodology and proof-of-concept studies16
Long-term inhaling ultrafine zinc particles increases cardiac wall stresses elevated by myocardial infarction15
Deep learning of longitudinal chest X-ray and clinical variables predicts duration on ventilator and mortality in COVID-19 patients15
Quantitative evaluation of computational fluid dynamics application development in the cardiovascular field through literature retrieval and bibliometric analysis15
Abnormal interlimb coordination of motor developmental delay during infant crawling based on kinematic synergy analysis15
A comprehensive workflow for CCTA and OCT data fusion with 3D printing validation: advancing patient-specific testing environments for percutaneous coronary intervention devices15
The effect of depth data and upper limb impairment on lightweight monocular RGB human pose estimation models15
Visualisation of magnetic field-induced nanoparticle clusters and mechanical property changes in a breast phantom for inductive moderate hyperthermia14
A comprehensive review of heart rate measurement using remote photoplethysmography and deep learning14
Synergistic enhancement of peripheral nerve regeneration using electrospun polylactic acid conduits with leupeptin and methylprednisolone in rats14
The application of machine learning methods for predicting the progression of adolescent idiopathic scoliosis: a systematic review14
Synthesis and processing of PCL (polycaprolactone) and IRDye nanoparticles and their biodistribution14
Automatic detection of epilepsy from EEGs using a temporal convolutional network with a self-attention layer14
A model-based spectral directional approach reveals the long-term impact of COVID-19 on cardiorespiratory control and baroreflex14
Magnetic field exposure and liver disease: from current research to future directions14
Multimodal MRI radiomics and deep learning for brain age prediction: age-corrected brain age gap analysis in patients with insomnia13
Pathomics-based machine learning models for optimizing LungPro navigational bronchoscopy in peripheral lung lesion diagnosis: a retrospective study13
In vivo imaging of adipose-derived stem cell sheets on biodegradable nonwoven fabric using X-ray CT13
Computer models and artificial intelligence increase the fidelity and efficiency of the in vitro models for hearing loss13
Walking rehabilitation in incomplete spinal cord injury: evaluating the impact of robotic exoskeleton-assisted training13
Complexity of post-concussion syndrome assessment and management: a case for customizing rehabilitation13
In vivo video microscopy of the rupturing process of thin blood vessels to clarify the mechanism of bruising caused by blunt impact: an animal study13
Correction: Recent advances in potential drug nanocarriers for CNS disorders: a review13
Deep learning for Alzheimer’s disease: advances in classification, segmentation, subtyping, and explainability13
Transgenic high expression of EphB4 in canine periodontal ligament stem cells modulates osteogenic differentiation and migration in cPDLSCs13
Smartphone and tablet-based 3D scanner for anthropometric assessments in adults: a systematic review of reliability, validity, and accuracy12
Contractile function and insulin sensitivity are inversely regulated by insulin in primary myoblast human skeletal muscle microtissues12
Deep learning-based cardiac computed tomography angiography left atrial segmentation and quantification in atrial fibrillation patients: a multi-model comparative study12
Prediction of non-perfusion volume ratio for uterine fibroids treated with ultrasound-guided high-intensity focused ultrasound based on MRI radiomics combined with clinical parameters12
Exploring the mechanism of action of astragaloside in the treatment of osteoarthritis based on network pharmacology12
EEG-based emergency braking intention detection during simulated driving12
Design, construction, and deployment of a multi-locus transcranial magnetic stimulation system for clinical use12
Age-related differences in gait symmetry obtained from kinematic synergies and muscle synergies of lower limbs during childhood12
Video-based analysis of the blink reflex in Parkinson’s disease patients11
Epileptic spasm recognition: EEG classification using time–frequency features and machine learning11
Measures of overnight oxygen saturation to characterize sleep apnea severity and predict postoperative respiratory depression11
Preclinical evaluation of a hydraulic actuation system with guide tube for robotic cochlear implant electrode insertion11
Alertness assessment by optical stimulation-induced brainwave entrainment through machine learning classification11
Applications of nanotechnology in orthodontics: a comprehensive review of tooth movement, antibacterial properties, friction reduction, and corrosion resistance11
Correction: A personalised prosthetic liner with embedded sensor technology: a case study11
A review of decomposition methods for brain states estimation11
Heterogeneity of common carotid artery and abdominal aorta: an angle of sphingolipid metabolism in vascular smooth muscle cells11
A multi-task learning model using RR intervals and respiratory effort to assess sleep disordered breathing11
Deep learning for predicting myopia severity classification method11
Which are best for successful aging prediction? Bagging, boosting, or simple machine learning algorithms?11
Effects of different running intensities on the micro-level failure strain of rat femoral cortical bone structures: a finite element investigation11
Functional design of anastomotic staples in gastrointestinal surgery: mechanistic insights and clinical translation11
Resting-state brain network alterations in adolescent idiopathic scoliosis using functional near-infrared spectroscopy10
Optimizing stent retrievers for mechanical enhancement and in vitro testing in acute ischemic stroke models10
Convolutional neural network analysis of cervical CT images: classification of Kikuchi disease, lymphoma, lymphadenitis, and tuberculosis10
Biomimetic electrospun nanofibrous composites for bone tissue engineering: a review of materials, fabrication, and applications10
EfficientNet-based machine learning architecture for sleep apnea identification in clinical single-lead ECG signal data sets10
Development of early prediction model of in-hospital cardiac arrest based on laboratory parameters10
Self-supervised learning framework application for medical image analysis: a review and summary10
Integrative research on the mechanisms of acupuncture mechanics and interdisciplinary innovation10
Multi-branch CNNFormer: a novel framework for predicting prostate cancer response to hormonal therapy10
Investigating the correlation between smoking and blood pressure via photoplethysmography10
Assessment of demineralized tooth lesions using optical coherence tomography and other state-of-the-art technologies: a review10
Impact of EIT-based regional ventilation distribution on outcomes in different types of critical illness: a retrospective cohort study10
Noninvasive spinal stimulation improves walking in chronic stroke survivors: a proof-of-concept case series9
Comparison of gait parameters between post-surgery ankle fracture patients and healthy individuals: a systematic review and meta-review9
The role of brain-derived neurotrophic factor in cardiometabolic disease and mental health within the spinal cord injury population: a systematic review9
WDRIV-Net: a weighted ensemble transfer learning to improve automatic type stratification of lumbar intervertebral disc bulge, prolapse, and herniation9
Impacts of stimulus parameters and configurations on motor cortex direct electrical stimulation using intrinsic optical imaging: a pilot study9
Relationship between RSV-hospitalized children and meteorological factors: a time series analysis from 2017 to 20239
Continuous relative phases of walking with an articulated passive ankle–foot prosthesis in individuals with a unilateral transfemoral and transtibial amputation: an explorative case–control study9
Prediction of risk factors of plastic bronchitis in children with severe Mycoplasma pneumoniae pneumonia9
Development of a deep learning radiomics model combining lumbar CT, multi-sequence MRI, and clinical data to predict high-risk cage subsidence after lumbar fusion: a retrospective multicenter study9
Conductivity-based choline contrast as a potential imaging biomarker for assessing abnormal choline metabolism9
Outcomes of dental autotransplantation in relation to dental root formation. Systematic review and meta-analysis9
Impact of stroma remodeling on forces experienced by cancer cells and stromal cells within a pancreatic tumor tissue9
Predicting the diabetic foot in patients with type 2 diabetes mellitus based on machine learning9
A survey of Transformer applications for histopathological image analysis: New developments and future directions9
A novel corneal indentation device for comparison of corneal tangent modulus before and after FS-LASIK in vivo9
An in-vitro three-dimensional surgical simulation technique to predict tibial tunnel length in transtibial posterior cruciate ligament reconstruction9
Calculation of recovery coefficients for partial volume effect correction in PET/CT imaging using a customized anthropomorphic body phantom9
A coarse-to-fine cascade deep learning neural network for segmenting cerebral aneurysms in time-of-flight magnetic resonance angiography9
A nomogram prediction model for the risk of intra-abdominal infection after endoscopic full-thickness resection of gastric submucosal tumors9
Deep learning based on susceptibility-weighted MR sequence for detecting cerebral microbleeds and classifying cerebral small vessel disease9
Investigation of bending angle algorithm and path planning for puncture needles in transjugular intrahepatic portosystemic shunt9
OxyJet CPAP: an electricity-free low-cost emergency respiratory support device8
A glaucoma micro-stent with diverging channel and stepped shaft structure based on microfluidic template processing technology8
Applications of recombinant type III collagen in tissue engineering8
Non-invasive myocardial work index contributes to early identification of impaired left ventricular myocardial function in uremic patients with preserved left ventricular ejection fraction8
Desargues cloud TPS: a cloud-based automatic radiation treatment planning system for IMRT8
An interpretable machine learning model integrating computed tomography radiomics and clinical features for predicting the urosepsis after percutaneous nephrolithotomy8
A PRISMA-based systematic review on advances in identity recognition and authentication using human biometric signals (2018–2023)8
A TyG–UHR-based machine learning model for screening lean MAFLD: development and external validation8
Asymmetric tripolar nerve cuff electrode designs for optimizing anodal block of myelinated fibers8
Gastric polyp detection module based on improved attentional feature fusion8
Unveiling the diagnostic power of lncRNAs in colorectal cancer: a meta-analysis8
Transcriptomic and metabolomic insights into neutrophil activity in COPD complicated by metabolic syndrome8
RAGE plays key role in diabetic retinopathy: a review8
A combined encoder–transformer–decoder network for volumetric segmentation of adrenal tumors8
Neuro-nanotechnology: diagnostic and therapeutic nano-based strategies in applied neuroscience8
Deep learning algorithm performance in contouring head and neck organs at risk: a systematic review and single-arm meta-analysis8
The development and application of magnetic surgery in clinical treatment8
Applications of radiomics-based analysis pipeline for predicting epidermal growth factor receptor mutation status8
Assessing hemodynamic changes in diabetic patients with and without peripheral arterial disease using dynamic vascular optical spectroscopy8
Targeted drug delivery strategies for oral cancer: the role of liposomes in drug delivery systems7
Analysis of angiographic findings and short-term recurrence factors in patients presenting with hemoptysis7
Effect of nano-hydroxyapatite filling on masticatory function and gingival sulcular fluid inflammatory factor levels in periapical inflammation7
Machine learning-enhanced echocardiography for screening coronary artery disease7
Deep learning-driven multi-view multi-task image quality assessment method for chest CT image7
Designing and validating an experimental protocol to induce airway narrowing in older adults with and without asthma7
Data-independent fluorescence molecular imaging analysis: a two-stage clustering framework for intraoperative tumor imaging7
Simulating impaired left ventricular–arterial coupling in aging and disease: a systematic review7
Video microscopy: an old story with a bright biological future7
Effect of microtextured titanium sheets using laser enhances proliferation and collagen synthesis of mouse fibroblasts via the TGF-β/Smad pathway7
The influence of successful septal myectomy on myocardial stress distributions in the left ventricle: a computational analysis7
Lung cancer multimodal auxiliary diagnosis based on entropy weight decision fusion7
A review of machine learning applications in heart health7
Differentiation between invasive ductal carcinoma and ductal carcinoma in situ by combining intratumoral and peritumoral ultrasound radiomics7
Investigation of total skin helical tomotherapy using a 3D-printed total skin bolus7
Accuracy evaluation and clinical realization of digital interproximal enamel reduction for orthodontics: a case study7
Development and validation of a machine learning model for predicting 6-month mortality in patients with infective endocarditis7
Kinematic tracking of the small bones of the wrist in sequential 3DCT and dynamic 4DCT volume images using open-source Hierarchical 3D Registration, a module within SlicerAutoscoperM6
A nomogram and risk stratification system for predicting survival in T1-2N0-1 breast cancer patients with liver metastasis in females: a population-based study6
Viability of ex-vivo myography as a diagnostic tool for rectus abdominis muscle electrical activity collected at Cesarean section within a diamater cohort study6
Bactericidal effect of low-temperature atmospheric plasma against the Shigella flexneri6
Protocol for metadata and image collection at diabetic foot ulcer clinics: enabling research in wound analytics and deep learning6
Automatic lesion detection and segmentation in 18F-flutemetamol positron emission tomography images using deep learning6
The concepts of muscle activity generation driven by upper limb kinematics6
A review of novel methods to assist digital planning and execution of osteotomy for upper limb deformities6
The clinical efficacy and impact on fertility function of laparoscopic surgery versus methotrexate for treatment of tubal pregnancy: a meta-analysis6
The role of bone marrow on the mechanical properties of trabecular bone: a systematic review6
Current methods for contactless optical patient diagnosis: a systematic review6
Correction: Nuclear proteins and diabetic retinopathy: a review6
Smartphone photogrammetry for prosthetics and orthotics: accuracy and reliability across upper-limb, lower-limb, and AFO casts6
Osteogenesis-synchronized degradation of Mg2⁺-doped calcium sulfate whisker bone grafts for critical-sized bone defect repair6
A comparison of point-tracking algorithms in ultrasound videos from the upper limb6
Correction: Multimodal contrastive learning on rs-fMRI to quantify whole-brain network recovery after hypothalamic hamartoma surgery6
Home-based upper limb stroke rehabilitation mechatronics: challenges and opportunities6
LncRNA RNF144A-AS1 increases P300-mediated H4K5 acetylation of PDE4 to promote keloid fibrosis6
Reliability analysis of hospital infusion pumps: a case study6
Research on automatic assessment of the severity of unilateral vocal cord paralysis based on Mel-spectrogram and convolutional neural networks6
Changes in temporal lobe activation during a sound stimulation task in patients with sensorineural tinnitus: a multi-channel near-infrared spectroscopy study6
Hemodialysis equipment malfunction incidence and risk profiling in clinical settings: a retrospective single-center cohort analysis6
Multimodal diagnosis model of Alzheimer’s disease based on improved Transformer6
Comparison of deep learning-based image segmentation methods for intravascular ultrasound on retrospective and large image cohort study6
Evaluating imaging repeatability of fully self-service fundus photography within a community-based eye disease screening setting6
Mechanically strained osteocyte-derived exosomes contained miR-3110-5p and miR-3058-3p and promoted osteoblastic differentiation6
Development of a hydrogel-based three-dimensional (3D) glioblastoma cell lines culture as a model system for CD73 inhibitor response study5
Deep learning for the harmonization of structural MRI scans: a survey5
Towards a validated musculoskeletal knee model to estimate tibiofemoral kinematics and ligament strains: comparison of different anterolateral augmentation procedures combined with isolated ACL recons5
Predicting the perioperative transfusion risk of proximal femoral antirotation nailing (PFNA) for elderly patients with intertrochanteric fractures: a new predictive nomogram5
Deep learning for predicting refractive error from multiple photorefraction images5
Forecasting motion trajectories of elbow and knee joints during infant crawling based on long–short-term memory (LSTM) networks5
Nanomedicine strategies for overcoming the blood–brain barrier in central nervous system drug delivery: mechanisms, advances, and challenges5
Human cells with osteogenic potential in bone tissue research5
Free-living core body temperature monitoring using a wrist-worn sensor after COVID-19 booster vaccination: a pilot study5
Degradable piezoelectric KNN/PLLA nanofibers for promoting osteogenesis and angiogenesis in bone regeneration5
Plant-mediated green nanoparticles: combining nanometal and biometabolite potential for Alzheimer’s treatment5
A personalized clinical assessment: multi-sensor approach for understanding musculoskeletal health in the frail population5
Sensor-based assessment of social isolation in community-dwelling older adults: a scoping review5
A finger on the pulse of cardiovascular health: estimating blood pressure with smartphone photoplethysmography-based pulse waveform analysis5
Design and validation of an alignment free adaptive joint torque measurement system5
Combined therapy with contralateral controlled functional electrical stimulation and transcranial direct current stimulation for early post-stroke hand dysfunction5
Exploration of the effect of morphology and location on hemodynamics of small aneurysms: a variable-controlled study based on two cases with tandem aneurysms5
Lower-limb prosthetic mechanisms: recent progress, control innovations and barriers to real-world adoption5
Estimating the neural spike train from an unfused tetanic signal of low-threshold motor units using convolutive blind source separation5
Proof of concept of an accelerometer as a trigger for unilateral diaphragmatic pacing: a porcine model5
Human acellular amniotic membrane/polycaprolactone vascular grafts prepared by electrospinning enable vascular remodeling in vivo5
The significance of ophthalmological features in diagnosis of thyroid-associated ophthalmopathy5
Effects of vibration therapy for post-stroke spasticity: a systematic review and meta-analysis of randomized controlled trials5
Applications of bioimpedance measurement in clinical and allied fields: a comprehensive review5
Salvigenin alleviates ferroptosis and pyroptosis in myocardial ischemia/reperfusion models by inhibiting the NLRP3 pathway5
Early diagnostic model of pyonephrosis with calculi based on radiomic features combined with clinical variables4
Changes in heart rate variability at rest and during exercise in patients after a stroke: a feasibility study4
Prediction model for recurrent laryngeal nerve injury in microwave ablation of thyroid nodules4
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