title: Cross-over trials, carry-over effects and the art of self-delusion.
authors.affiliation: Medical Department, CIBA-GEIGY AG, Basel, Switzerland.
authors.forename: S J
authors.initials: SJ
authors.lastname: Senn
mesh_terms: D000704:Analysis of Variance; D002986:Clinical Trials as Topic / Q000379:methods*; D006801:Humans; D015233:Models, Statistical