title: Update on Trial Registration 11 Years after the ICMJE Policy Was Established.
authors.affiliation: From the National Library of Medicine, National Institutes of Health, Department of Health and Human Services, Bethesda, MD.
authors.forename: Deborah A
authors.initials: DA
authors.lastname: Zarin
authors.affiliation: From the National Library of Medicine, National Institutes of Health, Department of Health and Human Services, Bethesda, MD.
authors.forename: Tony
authors.initials: T
authors.lastname: Tse
authors.affiliation: From the National Library of Medicine, National Institutes of Health, Department of Health and Human Services, Bethesda, MD.
authors.forename: Rebecca J
authors.initials: RJ
authors.lastname: Williams
authors.affiliation: From the National Library of Medicine, National Institutes of Health, Department of Health and Human Services, Bethesda, MD.
authors.forename: Thiyagu
authors.initials: T
authors.lastname: Rajakannan
mesh_terms: D002986:Clinical Trials as Topic / Q000592:standards*; D016208:Databases, Factual / Q000706:statistics & numerical data*; D035081:Editorial Policies; D038622:Internationality; D010506:Periodicals as Topic / Q000592:standards*; D011643:Publishing / Q000592:standards; D012042:Registries / Q000706:statistics & numerical data