Journal of Biomedical Materials Research Part B-Applied Biomaterials

Papers
(The TQCC of Journal of Biomedical Materials Research Part B-Applied Biomaterials is 7. 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 2020-03-01 to 2024-03-01.)
ArticleCitations
Zinc‐doped hydroxyapatite as a pH responsive drug delivery system for anticancer drug 6‐mercaptopurine807416368
Collagen‐based biomaterials for biomedical applications118
Human Amniotic Membrane: A review on tissue engineering, application, and storage63
A review of current advancements for wound healing: Biomaterial applications and medical devices46
An insight on egg white: From most common functional food to biomaterial application46
Potential of Laponite® incorporated oxidized alginate–gelatin (ADA‐GEL) composite hydrogels for extrusion‐based 3D printing45
Advancements and future directions in the antibacterial wound dressings – A review45
Load‐bearing biodegradable PCL‐PGA‐beta TCP scaffolds for bone tissue regeneration45
Review on current limits and potentialities of technologies for biomedical ceramic scaffolds production43
Hemostatic strategies for uncontrolled bleeding: A comprehensive update43
Functions and applications of metallic and metallic oxide nanoparticles in orthopedic implants and scaffolds42
Polycaprolactone usage in additive manufacturing strategies for tissue engineering applications: A review41
Biocompatiblemagnesium‐dopedbiphasic calcium phosphate for bone regeneration37
High‐throughput 3D bioprinting of corneal stromal equivalents37
Curcumin in decellularized goat small intestine submucosa for wound healing and skin tissue engineering36
Production of a novel poly(ɛ‐caprolactone)‐methylcellulose electrospun wound dressing by incorporating bioactive glass and Manuka honey36
Evaluation of osteogenic and antibacterial properties of strontium/silver‐containing porous TiO2 coatings prepared by micro‐arc oxidation35
Surface modifications to enhance osseointegration–Resulting material properties and biological responses32
An integrative review on the toxicity of Bisphenol A (BPA) released from resin composites used in dentistry32
A novel classification of bone graft materials28
Characteristics and biologic effects of thermosensitive quercetin‐chitosan/collagen hydrogel on human periodontal ligament stem cells28
High porous electrospun poly(ε‐caprolactone)/gelatin/MgO scaffolds preseeded with endometrial stem cells promote tissue regeneration in full‐thickness skin wounds: An 27
Role of bioglass in enamel remineralization: Existing strategies and future prospects—A narrative review26
Physical and biological properties of blend‐electrospun polycaprolactone/chitosan‐based wound dressings loaded with N‐decyl‐N, N‐dimethyl‐1‐decanaminium chloride: An in vitro and26
Evaluation of silk‐based bioink during pre and post 3D bioprinting: A review25
Enhancing wound healing dressing development through interdisciplinary collaboration24
Chitosan/zinc nitrate microneedles for bacterial biofilm eradication24
Comparative assessment of the efficiency of various decellularization agents for bone tissue engineering24
Antibacterial composite hydrogels of graphene quantum dots and bacterial cellulose accelerate wound healing23
Development of biodegradable webs of PLA/PCL blends prepared via electrospinning: Morphological, chemical, and thermal characterization22
The clinical use of bone graft substitutes in orthopedic surgery in Germany—A 10‐years survey from 2008 to 2018 of 1,090,167 surgical interventions22
Electrosprayed cefazolin‐loaded niosomes onto electrospun chitosan nanofibrous membrane for wound healing applications22
Harnessing electrospun nanofibers to recapitulate hierarchical fibrous structures of meniscus22
Development of mucoadhesive modified kappa‐carrageenan/pectin patches for controlled delivery of drug in the buccal cavity22
Structure, properties, and bioactivity of 3D printed PAEKs for implant applications: A systematic review22
Development of novel surface coating composed of MDPB and MPC with dual functionality of antibacterial activity and protein repellency21
Preliminary investigation on a new natural based poly(gamma‐glutamic acid)/Chitosan bioink21
CD68+ macrophages as crucial components of the foreign body reaction demonstrate an unconventional pattern of functional markers quantified by analysis with double fluorescence staining21
Analysis of the mechanical and physicochemical properties of Ti‐6Al‐4 V discs obtained by selective laser melting and subtractive manufacturing method21
Vascularization in tissue engineering: The architecture cues of pores in scaffolds21
Alginate/polyvinyl alcohol films for wound healing: Advantages and challenges21
Inhibition of programmed death‐1 decreases neointimal hyperplasia after patch angioplasty20
A comprehensive review summarizing the recent biomedical applications of functionalized carbon nanofibers20
3D‐printed cryomilled poly(ε‐caprolactone)/graphene composite scaffolds for bone tissue regeneration20
Biological evaluation of preceramic organosilicon polymers for various healthcare and biomedical engineering applications: A review20
Ovarian extracellular matrix‐based hydrogel for human ovarian follicle survival in vivo: A pilot work19
Asymmetric resorbable‐based dental barrier membrane for periodontal guided tissue regeneration and guided bone regeneration: A review19
Autoclaving of Poloxamer 407 hydrogel and its use as a drug delivery vehicle19
A metallic biomaterial tribocorrosion model linking fretting mechanics, currents, and potentials: Model development and experimental comparison19
Physically‐cross‐linked poly(vinyl alcohol) cell culture plate coatings facilitate preservation of cell–cell interactions, spheroid formation, and stemness19
Acellular matrix hydrogel for repair of the temporomandibular joint disc18
Modifications on porous absorbable Fe‐based scaffolds for bone applications: A review from corrosion and biocompatibility viewpoints18
Polyether ether ketone surface modification with plasma and gelatin for enhancing cell attachment17
Evaluation of a biodegradable PLA–PEG–PLA internal biliary stent for liver transplantation: in vitro degradation and mechanical properties17
Chorion and amnion/chorion membranes in oral and periodontal surgery: A systematic review17
Vitreous substitutes: An overview of the properties, importance, and development17
Blends of gelatin and hyaluronic acid stratified by stereolithographic bioprinting approximate cartilaginous matrix gradients17
Mechanical and in vitro biological properties of uniform and graded Cobalt‐chrome lattice structures in orthopedic implants17
ePTFE‐based biomedical devices: An overview of surgical efficiency16
Tooth sealing formulation with bacteria‐killing surface and on‐demand ion release/recharge inhibits early childhood caries key pathogens16
Antibody‐modified magnetic nanoparticles as specific high‐efficient cell‐separation agents16
Ti‐9Mnβ‐type alloy exhibits better osteogenicity thanTi‐15Mnalloy in vitro16
Cu‐loaded Brushite bone cements with good antibacterial activity and operability16
Structural optimization and finite element analysis of poly‐l‐lactide acid coronary stent with improved radial strength and acute recoil rate16
Electrical therapies act on the Ca2+/CaM signaling pathway to enhance bone regeneration with bioactive glass [S53P4] and allogeneic grafts16
Bioinspired antibacterial surface for orthopedic and dental implants16
Biomechanical analyses of one‐piece dental implants composed of titanium, zirconia, PEEK, CFR‐PEEK, or GFR‐PEEK: Stresses, strains, and bone remodeling prediction by t15
Effects of rotor angle and time after centrifugation on the biological in vitro properties of platelet rich fibrin membranes15
Application of biomaterials in periodontal tissue repair and reconstruction in the presence of inflammation under periodontitis through the foreign body response: Recent progress and perspectives15
Polycaprolactone fibrous electrospun scaffolds reinforced with copper doped wollastonite for bone tissue engineering applications15
A systematic review of preclinical in vivo testing of 3D printed porous Ti6Al4V for orthopedic applications, part I: Animal models and bone ingrowth outcome measures15
In vitro and in vivo evaluation of a novel bioresorbable magnesium scaffold with different surface modifications15
Surface modification strategies for hemodialysis catheters to prevent catheter‐related infections: A review15
Long‐term in vivo integrity and safety of 3D‐bioprinted cartilaginous constructs15
Evaluation of a novel biodegradable ureteral stent produced from polyurethane and magnesium alloys15
Study on the osteogenesis of rat mesenchymal stem cells and the long‐term antibacterial activity of Staphylococcus epidermidis on the surface of silver‐rich TiN/Ag modifie15
Current knowledge of immunomodulation strategies for chronic skin wound repair14
In vitro and in vivo assessment of a 3D printable gelatin methacrylate hydrogel for bone regeneration applications14
Scale‐up manufacturing of gelatin‐based microcarriers for cell therapy14
Antibacterial and anti‐inflammatory activities of chitosan/copper complex coating on medical catheters: In vitro and in vivo14
Mechanical and degradation properties of poly(methyl methacrylate) cement/borate bioactive glass composites14
Radiological evaluations of low cost wollastonite nano‐ceramics graft doped with iron oxide in the treatment of induced defects in canine mandible14
Development of tantalum with highly hydrophilic surface and antimicrobial properties obtained by micro‐arc oxidation process14
Gelatin improves peroxidase‐mediated alginate hydrogel characteristics as a potential injectable hydrogel for soft tissue engineering applications14
Fabrication and cellular interactions of nanoporous tantalum oxide13
Shareability of antibacterial and osteoblastic‐proliferation activities of zinc‐doped hydroxyapatite nanoparticles in vitro13
Bioactivity and antibacterial activity of strontium and silver ion releasing titanium13
One‐pot porogen free method fabricated porous microsphere‐aggregated 3D PCL scaffolds for bone tissue engineering13
Self‐assembling human skeletal organoids for disease modeling and drug testing13
Poly (γ‐glutamic acid)/chitooligo‐saccharide/papain hydrogel prevents hypertrophic scar during skin wound healing13
Novel three‐dimensional bioglass functionalized gelatin nanofibrous scaffolds for bone regeneration13
Microarray analysis reveals that lncRNA PWRN1‐209 promotes human bone marrow mesenchymal stem cell osteogenic differentiation on microtopography titanium surface in vitro13
The use of solvents for gutta‐percha dissolution/removal during endodontic retreatments: A scoping review13
In vivo efficacy of 3D‐printed elastin–gelatin–hyaluronic acid scaffolds for regeneration of nasal septal cartilage defects13
Evaluation of in vitro corrosion behavior of zinc–hydroxyapatite and zinc–hydroxyapatite–iron as biodegradable composites13
Developing sulfur‐doped titanium oxide nanoparticles loaded chitosan/cellulose‐based proangiogenic dressings for chronic ulcer and burn wounds healing13
Magnetic nanoparticle loaded human adipose derived mesenchymal cells spheroids in levitated culture13
Preparation and characterization of 58S bioactive glass based scaffold with Kaempferol‐containing Zein coating for bone tissue engineering13
Hydroxyapatite sonosensitization of ultrasound‐triggered, thermally responsive hydrogels: An on‐demand delivery system for bone repair applications12
Optimized parameters for the preparation of silk fibroin drug‐loaded microspheres based on the response surface method and a genetic algorithmbackpropagation neural network mode12
Alpha‐mangostin and resveratrol, dual‐drugs‐loaded mucoadhesive thiolated chitosan‐based nanoparticles for synergistic activity against colon cancer cells12
Biocompatibility and stability during storage of Foley urinary catheters coated chlorhexidine loaded nanoparticles by nanocoating: in vitro and in vivo evaluation12
Fabrication of collagen with polyhexamethylene biguanide: A potential scaffold for infected wounds12
Lactobacillus cell‐free supernatant as a novel bioagent and biosurfactant against Pseudomonas aeruginosa in the prevention and treatment of orthopedic implant infec12
The improvement of periodontal tissue regeneration using a 3D‐printed carbon nanotube/chitosan/sodium alginate composite scaffold12
Alumina‐toughened zirconia for dental applications: Physicochemical, mechanical, optical, and residual stress characterization after artificial aging12
In vitro and in vivo study on the osseointegration of BCP‐coated versus uncoated nondegradable thermoplastic polyurethane focal knee resurfacing implants12
Novel polycaprolactone (PCL)‐type I collagen core‐shell electrospun nanofibers for wound healing applications12
Anticoagulation and antibacterial functional coating on vascular implant interventional medical catheter12
In vitro cytocompatibility and antibacterial studies on biodegradable Zn alloys supplemented by a critical assessment of direct contact cytotoxicity assay12
Colloidal stability, cytotoxicity, and cellular uptake of HfO2 nanoparticles11
Liquid metal polymer composite: Flexible, conductive, biocompatible, and antimicrobial scaffold11
Tissue factor‐loaded collagen/alginate hydrogel beads as a hemostatic agent11
Influence of bovine serum albumin on biodegradation behavior of pure Zn11
Enhanced osteogenic differentiation of mesenchymal stem cells on P(VDF‐TrFE) layer coated microelectrodes11
A comparative analysis of solvent cast 3D printed carbonyl iron powder reinforced polycaprolactone polymeric stents for intravascular applications11
Tuftelin‐derived peptide facilitates remineralization of initial enamel caries in vitro11
3D‐printed hydroxyapatite scaffolds for bone tissue engineering: A systematic review in experimental animal studies11
Osseointegration and antibacterial effect of an antimicrobial peptide releasing mesoporous titania implant11
Controlling the bone regeneration properties of bioactive glass: Effect of particle shape and size11
Urine‐derived stem cells loaded onto a chitosan‐optimized biphasic calcium‐phosphate scaffold for repairing large segmental bone defects in rabbits11
Development of fibronectin‐loaded nanofiber scaffolds for guided pulp tissue regeneration11
Thermally drawn biodegradable fibers with tailored topography for biomedical applications10
Zinc‐ and strontium‐ co‐incorporated nanorods on titanium surfaces with favorable material property, osteogenesis, and enhanced antibacterial activity10
Development and evaluation of reparative tricalcium silicate‐ZrO2‐Biosilicate composites10
Controlled release of the drug for osteoporosis from the surface of titanium implants coated with calcium titanate10
Comparison of two pore sizes of LAE442 scaffolds and their effect on degradation and osseointegration behavior in the rabbit model10
Fe/Mn multilayer nanowires as dual mode T1T2 magnetic resonance imaging contrast agents10
New cross‐linkable poly[bis(octafluoropentoxy) phosphazene] biomaterials: Synthesis, surface characterization, bacterial adhesion, and plasma coagulation responses10
Roughness and wettability of titanium implant surfaces modify the salivary pellicle composition10
Use of hemostatic agents for surgical bleeding in laparoscopic partial nephrectomy: Biomaterials perspective10
Combined application of femtosecond laser and air‐abrasion protocols to monolithic zirconia at different sintering stages: Effects on surface roughness and resin bond strength10
Structural phase formation and in vitro bioactivity evaluations of strontium phosphosilicate for orthopedic applications10
Oxidized sodium alginate crosslinked silk fibroin composite scaffold for skin tissue engineering10
In vitro bioactivity of 3D microstructure hydroxyapatite/collagen based‐egg white as an antibacterial agent10
Comparison of the formation, adipogenic maturation, and retention of human adipose‐derived stem cell spheroids in scaffold‐free culture techniques10
Polybutylene succinate artificial scaffold for peripheral nerve regeneration10
How surface coatings on titanium implants affect keratinized tissue: A systematic review10
Development of methylcellulose‐based sustained‐release dosage by semisolid extrusion additive manufacturing in drug delivery system10
Functionalized polyanhydride nanoparticles for improved treatment of mitochondrial dysfunction9
3D printed bismuth oxide‐polylactic acid composites for radio‐mimetic computed tomography spine phantoms9
An update on hydroxyapatite/collagen composites: What is there left to say about these bioinspired materials?9
Crosslinking of gum‐based composite scaffolds for enhanced strength and stability: A comparative study between sodium trimetaphosphate and glutaraldehyde9
Opportunities and challenges of hydrogel microspheres for tendon–bone healing after anterior cruciate ligament reconstruction9
Construction of a composite hydrogel of silk sericin via horseradish peroxidase‐catalyzed graft polymerization of poly‐PEGDMA9
Recent progress and challenges on the bioassay of pathogenic bacteria9
Mechanical performance and biocompatibility assessment of Zn‐0.05wt%Mg‐(0.5, 1 wt%) Ag alloys9
Mechanical removal of biofilm on titanium discs: An in vitro study9
Dehydrated human amniotic membrane regulates tenocyte expression and angiogenesis in vitro: Implications for a therapeutic treatment of tendinopathy9
Fabrication and characterization of electrospun biopolyester/gelatin nanofibers9
Ambient temperature sulfonated carbon fiber reinforced PEEK with hydroxyapatite and reduced graphene oxide hydroxyapatite composite coating9
Biosafety and biodegradation studies of AZ31B magnesium alloy carotid artery stent in vitro and in vivo9
Cytotoxic and genotoxic effects in human gingival fibroblast and ions release of endodontic sealers incorporated with nanostructured silver vanadate9
Enhancing the soft‐tissue integration of dental implant abutments—in vitro study to reveal an optimized microgroove surface design to maximize spreading and alignment of human gi9
Alteration of structural and mechanical properties of the temporomandibular joint disc following elastase digestion9
A systematic review on the effect of inorganic surface coatings in large animal models and meta‐analysis on tricalcium phosphate and hydroxyapatite on periimplant bone formation9
Nanofibrous polycaprolactone/chitosan membranes for preventing postsurgical tendon adhesion9
Engineering a highly elastic bioadhesive for sealing soft and dynamic tissues9
In vitro methodology for medical device material thrombogenicity assessments: A use condition and bioanalytical proof‐of‐concept approach9
Advances in electrospun scaffolds for meniscus tissue engineering and regeneration9
Comparison capacity of collagen hydrogel, mix‐powder and in situ hydroxyapatite/collagen hydrogelscaffolds with and without mesenchymal stem cells and platelet‐rich plasma in regeneration o9
Influence of UV‐irradiation intensity and exposure duration on the hemobiocompatibility enhancement of a novel synthesized phosphobetaine zwitterions polyethersulfone clinical hemodialysis membranes9
Phenylboronic acid‐functionalized F127‐oligochitosan conjugate micelles for doxorubicin encapsulation9
Quantitative assessment of dentine mineralization and tubule occlusion by NovaMin and stannous fluoride using serial block face scanning electron microscopy9
Mixed material wear particle isolation from periprosthetic tissue surrounding total joint replacements8
3D‐Printed composite scaffolds based on poly(ε‐caprolactone) filled with poly(glutamic acid)‐modified cellulose nanocrystals for improved bone tissue regeneration8
Dissolution, bioactivity behavior, and cytotoxicity of 19.58Li2O·11.10ZrO2·69.32SiO2 glass–ceramic8
Oxygen‐sufficient lipid nanobubbles combined with UTMD for enhanced sonodynamic therapy of Hep‐G2 cells8
Applications of fluorescent materials in the detection of alkaline phosphatase activity8
Application of a novel thermo‐sensitive injectable hydrogel in therapy in situ for drug accurate controlled release8
Development of NSAID‐loaded nano‐composite scaffolds for skin tissue engineering applications8
Physiochemical and bactericidal activity evaluation: Silver‐augmented 3D‐printed scaffolds—An in vitro study8
Corrosion resistance of a Nitinol ocular microstent: Implications on biocompatibility8
Type H blood vessels in coupling angiogenesis‐osteogenesis and its application in bone tissue engineering8
Physico‐chemical characterization and tissue healing changes by Hancornia speciosa Gomes latex biomembrane8
Ultrahigh packing density next generation microtube array membrane: A novel solution for absorption‐based extracorporeal endotoxin removal device8
Protecting the skin‐implant interface with transcutaneous silver‐coated skin‐and‐bone‐integrated pylon in pig and rabbit dorsum models8
Addition of glycerol enhances the flexibility of gelatin hydrogel sheets; application for in utero tissue engineering8
Temperature dependence of nickel ion release from nitinol medical devices8
Mucoadhesive hyaluronic acid‐based films for vaginal delivery of metronidazole8
The role of surface oxide thickness and structure on the corrosion and nickel elution behavior of nitinol biomedical implants8
Achieving enhanced bone regeneration using monetite granules with bone anabolic drug conjugates (C3 and C6) in rat mandibular defects8
Bone forming ability of recombinant human collagen peptide granules applied with β‐tricalcium phosphate fine particles8
Polycaprolactone fumarate acts as an artificial neural network to promote the biological behavior of neural stem cells8
Foam‐in‐vein: A review of rheological properties and characterization methods for optimization of sclerosing foams8
A collagen/PLA hybrid scaffold supports tendon‐derived cell growth for tendon repair and regeneration8
Human small intestine cancer cell membrane‐camouflaged quercetin‐melanin for antibacterial and antitumor activity8
Citric acid cross‐linked chitosan for inhibiting oxidative stress after nerve injury8
The evaluation of a multiphasic 3D‐bioplotted scaffold seeded with adipose derived stem cells to repair osteochondral defects in a porcine model8
Sterilization effects on poly(glycerol dodecanedioate): A biodegradable shape memory elastomer for biomedical applications8
Calcium phosphate‐based composite cement: Impact of starch type and starch pregelatinization on its physicochemical properties and performance in the vertebral fracture surgical models in vitro8
Structural, biocompatibility, and antibacterial properties of Ge–DLC nanocomposite for biomedical applications8
Corrosion resistance of the nickel‐free high‐nitrogen steel FeCrMnMoN0.9 under simulated inflammatory conditions8
Antimicrobial activity and cytotoxicity study of cerium oxide nanoparticles with two different sizes8
Hemoglobin–albumin clusters as an artificial O2 carrier: Physicochemical properties and resuscitation from hemorrhagic shock in rats8
Biological characterization of dehydrated amniotic membrane allograft: Mechanisms of action and implications for wound care8
Nontribological corrosion modes dominate wrought CoCrMo acetabular taper corrosion: A retrieval study8
Decellularized gastric matrix as a mesh for gastric perforation repair8
Biotransformation and toxicity evaluation of functionalized manganese doped iron oxide nanoparticles7
Comparing the physicochemical properties of dicalcium phosphate dihydrate (DCPD) and polymeric DCPD (P‐DCPD) cement particles7
Evaluation of the biological and physicochemical properties of calcium silicate‐based and epoxy resin‐based root canal sealers7
Microneedle‐based transdermal electrochemical biosensors based on Prussian blue‐gold nanohybrid modified screen‐printed electrodes7
Comparison of decellularization protocols for cultured cell‐derived extracellular matrix—Effects on decellularization efficacy, extracellular matrix retention, and cell functions7
Electrospun nanofiber mesh with connective tissue growth factor and mesenchymal stem cells for pelvic floor repair: Long‐term study7
Bone formation at Ti‐6Al‐7Nb scaffolds consisting of 3D honeycomb frame and diamond‐like carbon coating implanted into the femur of beagles7
Enhanced new bone formation in canine maxilla by a graft of electrically polarized β‐tricalcium phosphate7
Thermal changes during drilling in human femur by rotary ultrasonic bone drilling machine: A histologic and ultrastructural study7
Design of chemically defined synthetic substrate surfaces for the in vitro maintenance of human pluripotent stem cells: A review7
Titania‐based sol–gel coatings with Ag, Ca‐P applied on titanium substrate developed for implantation7
A high molecular weight hyaluronic acid biphasic dispersion as potential therapeutics for interstitial cystitis7
Shape memory injectable cryogel based on carboxymethyl chitosan/gelatin for minimally invasive tissue engineering: In vitro and in vivo assays7
Fibrous biomaterials: Effect of textile topography on foreign body reaction7
In vivo evaluation of temperature‐responsive antimicrobial‐loaded PNIPAAm hydrogels for prevention of surgical site infection7
In vivo behaviors of highly flexible paper consisting of ultralong hydroxyapatite nanowires7
In vitro evaluation of loaded chitosan membranes for pain relief and infection prevention7
Biomimetic hydroxyapate/polydopamine composites with good biocompatibility and efficiency for uncontrolled bleeding7
Biodegradable and antithrombogenic chitosan/elastin blended polyurethane electrospun membrane for vascular tissue integration7
Electrospun polylactic acid scaffolds with strontium‐ and cobalt‐doped bioglass for potential use in bone tissue engineering applications7
High molecular weight form of hyaluronic acid reduces neuroinflammatory response in injured sciatic nerve via the intracellular domain of CD447
A multifunctional dual‐shell magnetic nanocomposite with near‐infrared light response for synergistic chemo‐thermal tumor therapy7
Generation of bone grafts using cryopreserved mesenchymal stromal cells and macroporous collagen‐nanohydroxyapatite cryogels7
Biofabricating hollow microneedle array with controllable microstructure for cell transplantation7
Decellularized muscle‐derived hydrogels support in vitro cardiac microtissue fabrication7
A polyurethane‐based surgical adhesive for sealing blood vessel anastomoses—A feasibility study in pigs7
Improved hemocompatibility of polysulfone hemodialyzers with Endexo® surface modifying molecules7
Characterization in respect to degradation of titanium‐coated polypropylene surgical mesh explanted from humans7
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