title: Clinical trial registration: transparency is the watchword.
authors.affiliation: Department of Research Policy and Cooperation, World Health Organization, 1211 Geneva 27, Switzerland. simi@who.int
authors.forename: Ida
authors.initials: I
authors.lastname: Sim
authors.forename: An-Wen
authors.initials: AW
authors.lastname: Chan
authors.forename: A Metin
authors.initials: AM
authors.lastname: Gülmezoglu
authors.forename: Tim
authors.initials: T
authors.lastname: Evans
authors.forename: Tikki
authors.initials: T
authors.lastname: Pang
mesh_terms: D002986:Clinical Trials as Topic; D006801:Humans; D012042:Registries