title: Are placebo run ins justified?
authors.affiliation: Department of Statistical Science, University College London. stephens@public-health.ucl.ac.uk
authors.forename: S
authors.initials: S
authors.lastname: Senn
mesh_terms: D030881:Disclosure; D004992:Ethics, Medical; D006801:Humans; D007258:Informed Consent; D010919:Placebos; D016032:Randomized Controlled Trials as Topic; D035842:Research Subjects; D014342:Truth Disclosure
chemical_list: D010919:Placebos