title: [Double-blind. The bias control in the performance of clinical trials. Contradictions, lacks and implications].
authors.affiliation: Centro Cochrane Iberoamericano. Servei d'Epidemiologia Clínica i Salut Pública. Hospital de la Santa Creu i Sant Pau. Barcelona. Spain. jrodriguezma@hsp.santpau.es
authors.forename: José Luis
authors.initials: JL
authors.lastname: Rodríguez Martín
authors.forename: Alfonso
authors.initials: A
authors.lastname: Casado Collado
mesh_terms: D015982:Bias; D002986:Clinical Trials as Topic / Q000592:standards*; D004311:Double-Blind Method