title: Informed consent. Two stage randomisation and consent would overcome many problems.
authors.forename: D J
authors.initials: DJ
authors.lastname: Stott
authors.forename: P
authors.initials: P
authors.lastname: Langhorne
authors.forename: H
authors.initials: H
authors.lastname: Rodgers
mesh_terms: D006801:Humans; D007258:Informed Consent; D016032:Randomized Controlled Trials as Topic / Q000379:methods*