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Case 53 — Selection bias in a self-reported forum sample · comparison exercise Summary draft for “Selection bias in a self-reported forum sample”: the...

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

Summary draft for “Exploratory subgroup analysis: keep the label visible”: the answer addresses “State whether it was prespecified and how…”; the rela...

Retain units, method, laboratory interval and collection context in a private clinical record. A forum comparison cannot diagnose a condition; a quali...

Clarification for “A literature note that separates hypothesis from observation”: the point beginning “State the study design and what was actually me...

Proposed correction: documentation supplied; method and sample linkage incomplete. Add a dated update if verifiable primary material later resolves th...

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

Case 11 — Assay-specific reference ranges: what must travel with a result? A value has been quoted without units, assay method or reference interval. ...