title: Small trials focusing on surrogate end points may be uninformative.
authors.forename: Harri
authors.initials: H
authors.lastname: Hemilä
mesh_terms: D001205:Ascorbic Acid / Q000627:therapeutic use; D002986:Clinical Trials as Topic / Q000592:standards* / Q000706:statistics & numerical data*; D023381:Endpoint Determination; D015444:Exercise / Q000502:physiology; D006801:Humans; D012107:Research Design; D012141:Respiratory Tract Infections / Q000453:epidemiology / Q000209:etiology / Q000517:prevention & control; D018401:Sample Size; D016896:Treatment Outcome
chemical_list: D001205:Ascorbic Acid