title: The dangers of subgroup analysis.
authors.forename: R
authors.initials: R
authors.lastname: Stephens
mesh_terms: D003627:Data Interpretation, Statistical; D006801:Humans; D009369:Neoplasms / Q000401:mortality / Q000628:therapy; D016032:Randomized Controlled Trials as Topic / Q000379:methods*; D015996:Survival Rate