title: Measurement error--"How much of a difference does it take to make a difference?".
authors.forename: P G
authors.initials: PG
authors.lastname: McDonough
mesh_terms: D003951:Diagnostic Errors; D005260:Female; D015571:Follicular Fluid / Q000737:chemistry / Q000000981:diagnostic imaging*; D006801:Humans; D001239:Inhalation; D012015:Reference Standards; D015203:Reproducibility of Results; D014463:Ultrasonography / Q000592:standards*