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Case 38 — Selection bias in a self-reported forum sample · source wording exercise A collection of forum reports is being treated as a representative ...

Record the original units and axis transformation, show any conversion explicitly and retain the original values. Do not compare apparent visual dista...

Case 36 — Research figure captions: tell the reader what was measured · source wording exercise Clarification for “Research figure captions: tell the ...

Even an authentic analytical report has scope limits. It is not by itself a demonstration of clinical efficacy, sterility or suitability for human use...

Case 17 — Selection bias in a self-reported forum sample Discuss who chose to post, missing outcomes, unverifiable records and changes in reporting ov...

Case 11 — Exploratory subgroup analysis: keep the label visible Clarification for “Exploratory subgroup analysis: keep the label visible”: the point b...