title: Within trial variation--a false trail?
authors.affiliation: ICRF Medical Statistics Group, Centre for Statistics in Medicine, Oxford, UK.
authors.forename: D G
authors.initials: DG
authors.lastname: Altman
mesh_terms: D000319:Adrenergic beta-Antagonists / Q000627:therapeutic use; D003627:Data Interpretation, Statistical; D006801:Humans; D009203:Myocardial Infarction / Q000188:drug therapy; D016032:Randomized Controlled Trials as Topic / Q000379:methods* / Q000706:statistics & numerical data; D016896:Treatment Outcome
chemical_list: D000319:Adrenergic beta-Antagonists