title: Randomized controlled trials: why choose a superiority non-inferiority or equivalence study design? A priori form of study comparison: superiority, non-inferiority, or equivalence.
authors.affiliation: chris.frampton@otago.ac.nz
authors.forename: Chris
authors.initials: C
authors.lastname: Frampton
mesh_terms: D006801:Humans; D016032:Randomized Controlled Trials as Topic / Q000379:methods*; D012107:Research Design