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 2021-06-01 to 2025-06-01.)

Article	Citations
The effectiveness of an automated algorithm as a tool for investigating the cause of anaemia in undiagnosed patients from general practitioners	131
Reducing neonatal phlebotomy blood losses through the accurate calculation of minimum test volume requirements	40
Falsely elevated type IV collagen caused in part by heterophilic antibodies: A case report	20
Determination and verification of reference intervals of serum immunoglobulin G at birth	19
A multicenter study comparing a point-of-care blood glucose metre with a blood gas analyser in infants by the Shikoku Neonatal Medical Research Group	16
Elevated Vitamin D leading to an Incidental Diagnosis of Multiple Myeloma	15
Prognostic significance of serum alkaline phosphatase for all-cause mortality in patients with hypertrophic cardiomyopathy: A cohort of the hospitalized population	12
Reference intervals of urinary kidney injury biomarkers for middle-aged men and women determined by quantitative protein mass spectrometry	11
The use of estimated Glomerular Filtration rate (GFR) in identifying pseudohyperkalaemia in primary care	11
Development and validation of interpretable machine learning models to predict glomerular filtration rate in chronic kidney disease Colombian patients	10
Familial hypercholesterolaemia with high triglycerides: A diagnostic challenge	8
Effect of albumin measurement methods on the albumin–bilirubin grade	8
Testing for lactase non-persistence in a Dutch population: Genotyping versus the hydrogen breath test	8
Acid freezes uricolysis in addition to glycolysis: Utility of fluoride-EDTA-citrate tube in the measurement of uric acid for patients administered rasburicase	8
Establishment of reference intervals for plasma metanephrines in seated position measured by LC-MS/MS and assessment of diagnostic performance in pheochromocytoma/paraganglioma	7
Usefulness of the 3-hydroxykynurenine/kynurenic acid ratio as a diagnostic biomarker for diffuse larger B-cell lymphoma	7
Elevated lactate dehydrogenase and reflexive myeloproliferative neoplasm molecular diagnostics	7
Detection of serum M-protein in acetonitrile precipitates by MALDI-TOF mass spectrometry: A novel, low-cost methodology	6
Effect of multiple loading FIT sample collection devices on faecal haemoglobin concentration	6
Rapid diagnostic strategies using high sensitivity troponin assays: what is the evidence and how should they be implemented?	6
Paired sensitivity analysis of four SARS-CoV-2 serological immunoassays in a longitudinal cohort of convalescent hospital staff	6
Machine learning predictive models of LDL-C in the population of eastern India and its comparison with directly measured and calculated LDL-C	5
Practical approaches to the detection of macrotroponin	5
Validation of the Martin method to estimate low-density lipoprotein cholesterol concentrations in Japanese populations and a modified method for laboratory information system application	5
Adult and neonate TSH blood spot reference intervals	5

Evaluation of a laboratory reflex testing protocol to detect hypopituitarism in primary care presenting as hypothyroxinaemia	5
A SARS-CoV-2 minimum data standard to support national serology reporting	5
Comparison of two primer-probe sets of Fusobacterium nucleatum using droplet digital polymerase chain reaction for the detection of colorectal neoplasia from faecal samples	4
Metronidazole is a chromatographic interference on a routine HPLC-UV assay for thiopurine metabolites	4
Comparison of faecal calprotectin using two collection and extraction strategies for the BÜHLMANN CALEX® Cap – possible implications for clinical cut-offs?	4
Biochip array technology for new psychoactive substances detection in biological samples: Evaluation of the specificity of the Randox Evidence Investigator^®	4
Corrigendum to “Improvement of point of care testing device for accurate whole blood glucose measurement in early neonates”	4
Vitamin B12 reference intervals on Beckman, Roche and Siemens analytical platforms	4
UKMedLab2021 conference—building a new platform for the future	4
Coefficients of variation analyses of internal quality control status for blood lead in China from 2015 to 2023	4
Serum carbohydrate antigen 72-4 concentrations decrease with age in females but not in males in Beijing, China	4
Evaluation of the new Abbott®Alinity assay for the measurement of thyroglobulin antibodies in patients with differentiated thyroid carcinoma	4
Cross-sectional audit assessing the quality of dried bloodspot specimens received by UK metabolic biochemistry laboratories for the biochemical monitoring of individuals with Phenylketonuria	4
Thyroid reference ranges in pregnancy utilizing an Abbott Alinity platform in a multi-ethnic population in the UK	4
Measurement of uric acid in FC Mix tubes is not accurate	4
A rare case of persistent hyperkalaemia	4
Comparison of ultra-performance liquid chromatography and ARK immunoassay for therapeutic drug monitoring of voriconazole	4
Quantitative effects of bilirubin structural photoisomers on the measurement of direct bilirubin via the vanadate oxidation method	4
Faecal calprotectin is not necessarily required as a screen for significant bowel disease in primary care	4
Standardising lipid testing and reporting in the United Kingdom; a joint statement by HEART UK and The Association for Laboratory Medicine	4
Pregnancy-specific reference intervals: should we exclude women based on body mass index?	3
The preservation of synovial fluid using dimethyl sulfoxide	3
The effect of paraprotein polymerisation on quantitation by capillary zone electrophoresis and Hevylite®	3
How best to support point-of-care testing in the community?	3
A United Kingdom-wide audit of the laboratory investigation of primary aldosteronism	3
A rapid liquid chromatography-tandem mass spectrometry method for the analysis of urinary 5-hydroxyindoleacetic acid (5-HIAA) that incorporates a ¹³C-labelled internal standard	3
Calculated small dense LDL-cholesterol and its correlation with the atherogenic index of plasma	3
Reference intervals for clinical biochemistry and haematology tests during normal pregnancy	3
Quality control of total carbon dioxide (CO₂) in serum or plasma using the Abbott Architect is affected by environmental pCO₂ concentrations	3
Low serum carnitine level is associated with increased urinary carnitine excretion in late pregnancy	3
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	3
Interference in immunoassay	3
Interferences in immunoassay: An estimate based on ‘real-world’ experience	3
Establishment of a novel ELISA system for measuring periostin independently of formation of the IgA complex	3
Importance of the preanalytical phase: Elevation of protein levels in cerebrospinal fluid samples due to inappropriate containers	3
The application and interpretation of laboratory biomarkers for the evaluation of vitamin B12 status	3
Maintaining glucose integrity ex-vivo: Impact of preanalytical specimen handling	3
Is there a role for C-reactive protein during and after labour?	3
Increased PD-1 expression of bone marrow T-cells in acute myeloid leukaemia patients after stem cell transplantation, and its association with overall survival	3
Glycated albumin and post-transplant diabetes mellitus in kidney transplant recipients	3
Identifying mislabelled samples: Machine learning models exceed human performance	3
Application of serum pools in insulin harmonization: Commutability and stability	3
High serum total vitamin B12 may mask biologically active B12 deficiency	3
Climate change and clinical biochemistry	2
EDTA plasma in glass and polyethylene terephthalate tubes is suitable for measurement of B-type natriuretic peptide on the Mindray CL-6000i	2
Improvement of point of care testing device for accurate whole blood glucose measurement in early neonates	2
Underreporting of synthetic cathinone poisoning with clinical immunoassays: An experimental and observational study	2
Routine use of natriuretic peptides: Lessons from a big data analysis	2
Do faecal test-based colorectal cancer screening pilots provide data that are reflected in subsequent programmes? Evidence from interval cancer proportions	2
Can patients with mild post-operative hyponatraemia following elective arthroplasty be discharged safely? A large-scale service evaluation suggests they can	2

Monoclonal protein polymerisation is the cause of IgM multiple isotype-matched monoclonal proteins	2
Repeat measurements on patient samples identifies unpredictable and poorly reproducible cardiac troponin results with a high-sensitivity cardiac troponin assay	2
Example of use of clock time-dependent targets for patient-based quality control	2
The preliminary study of delta checks for immunoglobulins and complements in the clinical laboratory	2
Best practice in statistics: The use of log transformation	2
Concordance in COVID-19 serology, bone mineralization, and inflammatory analytes between venous and self-collected capillary blood samples exposed to various pre-analytical conditions	2
Hepcidin analysis in pneumonia: Comparison of immunoassay and LC-MS/MS	2
Corrigendum to “Correlating arterial blood gas, acid-base and blood pressure abnormalities with outcomes in COVID-19 intensive care patients”	2
Impact of Hub & Spoke organization on the measurement of plasma ammonia	2
Exclusion criteria for reference studies: Context is key	2
Verification of the Bühlmann fPELA turbo faecal elastase assay on the Binding Site Optilite benchtop analyser	2
Detecting thyrotropin receptor mRNA from peripheral blood of patients with differentiated thyroid cancer rules out non-aggressive cases	2
Analytical characterization and clinical performance evaluation of a new point-of-care testing system for high-sensitivity cardiac troponin I assay	2
Case report: Skin protective barrier cream interference in benzethonium chloride method for urine protein measurement in a 6-month-old girl	2
Development of blood collection tubes for glucose measurement using adenosine 3-phosphate and sodium fluoride as glycolytic inhibitors	2
Purple urine in Berdon syndrome: a rare finding in the clinic laboratory	2
Metamizole (dipyrone) as an interferent in biochemical assays	2
Elevated procalcitonin concentrations in severe Covid-19 may not reflect bacterial co-infection	2
A survey of the reactivity of in vitro diagnostic bilirubin reagents developed in Japan using artificially prepared bilirubin materials: A comparison of synthetic delta, unconjugated, and tauri	2
Case report: Interference from isatuximab on serum protein electrophoresis prevented demonstration of complete remission in a myeloma patient	2
Establishment of trimester-specific reference intervals for thyroid stimulating hormone and free thyroxine during pregnancy in southwest China by indirect method	2
Air contamination of therapeutic drug monitoring assay reagents results in falsely high plasma ammonia levels	2
Establishment of sex-specific reference intervals for PIVKA-II in Southwest China: A real-world data analysis	2
Validation of the Randox colorimetric assays for serum copper and zinc	2
Biochemical osteomalacia in adults undergoing vitamin D testing in the North-East of Scotland	2
Population-specific adjusted calcium equations	2