title: The distinction between randomized clinical trials (RCTs) and preliminary feasibility and pilot studies: what they are and are not.
authors.forename: J Haxby
authors.initials: JH
authors.lastname: Abbott
mesh_terms: D005240:Feasibility Studies; D006801:Humans; D010865:Pilot Projects; D016032:Randomized Controlled Trials as Topic; D009626:Terminology as Topic
keywords: RCT; preliminary study