OOIR: Observatory of International Research

Papers

(The TQCC of Annals of Clinical Biochemistry is 2. 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 2021-03-01 to 2025-03-01.)

Article	Citations
EDTA plasma in glass and polyethylene terephthalate tubes is suitable for measurement of B-type natriuretic peptide on the Mindray CL-6000i	95
Exploratory study on reference intervals of calprotectin and pentraxin 3	39
Biological variation data: An important old topic with new standards and new look resources	25
LC-MS/MS the First 20 years: A Personal View	19
Lithium heparin interference in the Abbott enzymatic creatinine assay: the significance of under-filled tubes	18
Implementing cardiovascular precision diagnostics: laboratory specialists as catalysts?	17
Alternative equations for the calculation of LDL cholesterol: Is it time to replace Friedewald?	13
Updated adult ferritin reference intervals based on a large, healthy UK sample, measured on Roche Cobas series analysers	13
Uninterpretable cerebrospinal fluid absorbance scans caused by antibiotic therapy	12
Quality control of total carbon dioxide (CO₂) in serum or plasma using the Abbott Architect is affected by environmental pCO₂ concentrations	11
Simultaneous quantification of serum symmetric dimethylarginine, asymmetric dimethylarginine and creatinine for use in a routine clinical laboratory	10
Determination and verification of reference intervals of serum immunoglobulin G at birth	9
Acquired haemoglobin F (HbF) in HbA1c analysis predating a diagnosis of myelodysplastic syndrome	9
Reducing neonatal phlebotomy blood losses through the accurate calculation of minimum test volume requirements	8
Factors influencing the derivation and clinical application of blood calcium adjustment equations	8
Artificially raised creatinine concentrations due to analytical interference for samples contaminated with total parenteral nutrition fluid	8
Urolithiasis: Don’t forget the rarities	8
Pregnancy-specific reference intervals: should we exclude women based on body mass index?	7
The CELTIC ranges project (comprehensive and effective laboratory test reference intervals for Irish children) methodology and results for renal profile tests in plasma on the Roche modular^TM	7
Methods and reagent-lot comparisons by regression analysis: Sample size considerations	7
The effectiveness of an automated algorithm as a tool for investigating the cause of anaemia in undiagnosed patients from general practitioners	7
The effect of paraprotein polymerisation on quantitation by capillary zone electrophoresis and Hevylite®	7
Is there a role for C-reactive protein during and after labour?	7
Explainability does not improve biochemistry staff trust in artificial intelligence-based decision support	6
Participant case marks for identical comments in UK-NEQAS for interpretative comments have good precision	5

The effects of controlled acute psychological stress on serum cortisol and plasma metanephrine concentrations in healthy subjects	5
Reference ranges of thyroid hormones during the first trimester in Catalan women using the Atellica^® IM Solution Immunoassay Analyzer	5
The preservation of synovial fluid using dimethyl sulfoxide	5
Low serum carnitine level is associated with increased urinary carnitine excretion in late pregnancy	5
Suggested guide to using lactate gap as a surrogate marker in the diagnosis of ethylene glycol overdose	5
Concordance in COVID-19 serology, bone mineralization, and inflammatory analytes between venous and self-collected capillary blood samples exposed to various pre-analytical conditions	4
Molecular characterization of a novel homozygous deletion in β-globin cluster causing (δβ)⁰-Thalassemia among Tunisian family	4
A UK national audit of the laboratory investigation of phaeochromocytoma and paraganglioma	4
A composite risk model predicts disease progression in early stages of COVID-19: A propensity score-matched cohort study	4
Fibrin monomer complex as a potential thrombosis marker related to venous thromboembolism risk in pregnant women	4
Elevated Vitamin D leading to an Incidental Diagnosis of Multiple Myeloma	4
Do faecal test-based colorectal cancer screening pilots provide data that are reflected in subsequent programmes? Evidence from interval cancer proportions	4
An LC-MS/MS assay for analysis of equilibrium angiotensin II in human serum	4
Maintaining glucose integrity ex-vivo: Impact of preanalytical specimen handling	4
LabMedUK24 conference Brighton – editorial	4
Falsely elevated type IV collagen caused in part by heterophilic antibodies: A case report	4
Acceptability of plasma ammonia results when samples are not transported and processed under ideal conditions	4
How best to support point-of-care testing in the community?	4
Authors’ reply to ‘Plasma clearance and lipaemic index of lipid emulsion used for lipid emulsion treatment’	3
Evaluation of the quick-clotting serum separator tube, VQ-Tube™, for clinical chemistry and thyroid hormone assays	3
Purple urine in Berdon syndrome: a rare finding in the clinic laboratory	3
The effect of lithium variation coefficient on the risk of attack in patients with bipolar disorder: A pilot study	3
Verification of the Bühlmann fPELA turbo faecal elastase assay on the Binding Site Optilite benchtop analyser	3
UKMedLab2022 conference—building back	3
A United Kingdom-wide audit of the laboratory investigation of primary aldosteronism	3
A standard addition method to quantify serum lithium by inductively coupled plasma mass spectrometry	3
Hepcidin analysis in pneumonia: Comparison of immunoassay and LC-MS/MS	3
Reference intervals of urinary kidney injury biomarkers for middle-aged men and women determined by quantitative protein mass spectrometry	3
Validation and clinical evaluation of an ultra-performance liquid chromatography with ultraviolet detector method for plasma quantification of micafungin	3
Screening for Cushing’s syndrome: The ‘CS-Screening’ Shiny app	3
A survey of practice in the management of haemolysis, icterus and lipaemia in blood specimens in the United Kingdom and Republic of Ireland	3
Age- and sex-related reference interval for free thyroxine: An indirect approach	3
Assessing bone formation in patients with chronic kidney disease using procollagen type I N-terminal propeptide (PINP): The choice of assay makes a difference	3
Climate change and clinical biochemistry	3
Comparison of four high-throughput, automated immunoassays for the detection of SARS-CoV-2 antibodies	3
Familial hypercholesterolaemia with high triglycerides: A diagnostic challenge	3
Prognostic significance of serum alkaline phosphatase for all-cause mortality in patients with hypertrophic cardiomyopathy: A cohort of the hospitalized population	3
Monoclonal protein polymerisation is the cause of IgM multiple isotype-matched monoclonal proteins	3
Variation in liver function testing and the effect of pyridoxal-5-phosphate on ALT, AST and FIB-4 results	3
Utilising routine clinical laboratory data to support quality improvement in health care: Application of a national acute kidney injury alert system as a proof of concept	2
Detection of serum M-protein in acetonitrile precipitates by MALDI-TOF mass spectrometry: A novel, low-cost methodology	2
Establishment of CA19-9 reference intervals in an apparently healthy adult population in Singapore	2
Validation of the Randox colorimetric assays for serum copper and zinc	2
Diagnostic performance of serum calprotectin in discriminating active from inactive ulcerative colitis in an outpatient setting	2
Development and validation of interpretable machine learning models to predict glomerular filtration rate in chronic kidney disease Colombian patients	2
Increased PD-1 expression of bone marrow T-cells in acute myeloid leukaemia patients after stem cell transplantation, and its association with overall survival	2
Key methodological challenges in detecting circulating miRNAs in different biofluids	2
Stability of serum retinol-binding protein at −20⁰C	2
Interference in immunoassay	2
The application and interpretation of laboratory biomarkers for the evaluation of vitamin B12 status	2

Population-specific adjusted calcium equations	2
Dataset dependency of low-density lipoprotein-cholesterol estimation by machine learning	2
Reference intervals for thyroid-stimulating hormone, free thyroxine, free triiodothyronine, and total triiodothyronine in the Lebanese adult population	2
Determination of plasma lysophosphatidylethanolamines (lyso-PE) by LC-MS/MS revealed a possible relation between obesity and lyso-PE in Japanese preadolescent children: The Hokkaido study	2
Glycated albumin and post-transplant diabetes mellitus in kidney transplant recipients	2
Sample viscosity as a source of analytical error: The role of protein structure and mass concentration	2
Establishment of reference intervals for plasma metanephrines in seated position measured by LC-MS/MS and assessment of diagnostic performance in pheochromocytoma/paraganglioma	2
Determination of the biological variation and reference change value of lipoprotein (a)	2
Development of blood collection tubes for glucose measurement using adenosine 3-phosphate and sodium fluoride as glycolytic inhibitors	2
Usefulness of the 3-hydroxykynurenine/kynurenic acid ratio as a diagnostic biomarker for diffuse larger B-cell lymphoma	2
Salivary testosterone changes during oral glucose tolerance tests in overweight and obese men – Postprandial or circadian variation?	2
Investigation into the linearity of the Roche c 702 carbamazepine assay	2
Monitoring motherhood: Monitoring and optimizing glycaemia in women with pre-existing diabetes in pregnancy	2
Effect of albumin measurement methods on the albumin–bilirubin grade	2
Testing for lactase non-persistence in a Dutch population: Genotyping versus the hydrogen breath test	2
The use of estimated Glomerular Filtration rate (GFR) in identifying pseudohyperkalaemia in primary care	2
Personalising laboratory medicine in the ‘real world’: Assessing clinical utility, by clinical indication, of serum total B₁₂ and Active-B₁₂® (holotranscobalamin) in the diagnosi	2
A further monoclonal antibody-based immunoturbidimetry option for measuring faecal elastase on the Optilite analyser	2
Clinical and molecular findings in children and young adults with persistent low alkaline phosphatase concentrations	2
Best practice in statistics: The use of log transformation	2
The LEAP checklist for laboratory evaluation and analytical performance characteristics reporting of clinical measurement procedures	2
Analytical characterization and clinical performance evaluation of a new point-of-care testing system for high-sensitivity cardiac troponin I assay	2
Recent developments in the measurement and application of small dense LDL-cholesterol	2
Example of use of clock time-dependent targets for patient-based quality control	2
Application of serum pools in insulin harmonization: Commutability and stability	2
Acid freezes uricolysis in addition to glycolysis: Utility of fluoride-EDTA-citrate tube in the measurement of uric acid for patients administered rasburicase	2
Use of eGFR instead of creatinine in exclusion criteria for derivation of calcium adjustment equation	2
Managing ethylenediaminetetraacetic acid (EDTA) interference in EDTA contaminated samples – selectivity in reporting analytes	2