StudyDesign 06086 · Member profile

Ask whether assay, instrument, units or reference intervals changed and retain both original reports. Do not infer a physiological trend before assess...

Ask whether the sample identifier, issuing laboratory, report date and relevant analytical method can be verified. A copied certificate may be genuine...

Limit of the answer in “Selection bias in a self-reported forum sample”: “Discuss who chose to post, missing outcomes, unverifiable records…” is an ex...

Method note for “Clinical questions in an archive discussion”: use “Individual decisions belong with a qualified clinician who…” as a row heading in a...

Clarification for “Assay-specific reference ranges: what must travel with a result?”: the point beginning “Retain units, method, laboratory interval a...

Case 29 — Reference management: distinguish primary and secondary sources · source wording exercise Correction note for “Reference management: disting...