title: Clinical trials: bad combinations or bad designs.
authors.forename: Juan
authors.initials: J
authors.lastname: de la Haba-Rodríguez
authors.forename: Auxiliadora
authors.initials: A
authors.lastname: Gómez
authors.forename: Enrique
authors.initials: E
authors.lastname: Aranda
mesh_terms: D002986:Clinical Trials as Topic / Q000592:standards*; D012107:Research Design / Q000592:standards*