title: Subgroup Analysis: Refining a Positive Result or Trying to Rescue a Negative One?
authors.affiliation: University of Turin, San Luigi Gonzaga Hospital, Orbassano, Italy massimo.dimaio@unito.it.
authors.forename: Massimo
authors.initials: M
authors.lastname: Di Maio
authors.affiliation: Istituto Nazionale per lo Studio e la Cura dei Tumori, Fondazione G. Pascale Istituto di Ricovero e Cura a Carattere Scientifico, Napoli, Italy.
authors.forename: Francesco
authors.initials: F
authors.lastname: Perrone
mesh_terms: D017326:Clinical Trials, Phase III as Topic; D006801:Humans; D009369:Neoplasms / Q000628:therapy*; D016032:Randomized Controlled Trials as Topic