The official publication of Turkish Society of Clinical Biochemistry
Aim: Reference intervals/ranges are the most widely used decision-making tool in laboratory medicine and serve as the basis for many of the interpretations of test results. There is no agreement on the reference (normal) ranges for serum total 25-hydroxyvitamin D (25(OH)D)...
Fully Diamond OA with no APCs and no submission fees. Your research is freely available to readers worldwide from the day it publishes.
Double-blind peer review from an active editorial team returns a first decision in about 30 days, keeping your manuscript moving.
Backed by the Turkish Society of Clinical Biochemistry, JTCB welcomes submissions from researchers worldwide and reaches an international laboratory audience.
Method validation, analyzer comparisons, reference intervals, quality indicators, preanalytical studies, and instructive clinical case reports.
All manuscripts publish in English and follow ICMJE and COPE guidelines, with Crossref DOIs and TR Dizin indexing ensuring global discoverability.