title: Clinical trial registration.
authors.forename: Ludovic
authors.initials: L
authors.lastname: Reveiz
authors.forename: Andres Felipe
authors.initials: AF
authors.lastname: Cardona
authors.forename: Edgar Guillermo
authors.initials: EG
authors.lastname: Ospina
mesh_terms: D002986:Clinical Trials as Topic / Q000941:ethics* / Q000331:legislation & jurisprudence; D006801:Humans; D012042:Registries