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

Method note for “Comparing laboratory methods across years”: use “Ask whether assay, instrument, units or reference intervals changed…” as a row headi...

Case 48 — Comparing laboratory methods across years · source wording exercise Clarification for “Comparing laboratory methods across years”: the point...

Case 12 — Reproducibility checklist for a bench-method discussion List materials, measurement conditions, controls and exclusions with enough detail t...

Case 14 — Reproducibility checklist for a bench-method discussion List materials, measurement conditions, controls and exclusions with enough detail t...

Case 20 — Comparing laboratory methods across years Ask whether assay, instrument, units or reference intervals changed and retain both original repor...

Identify the original error and the corrected text, date the correction and link the source. Keep the correction visible to readers who may have saved...