title: Registration of observational studies: is it time?
authors.affiliation: National Library of Medicine, National Institutes of Health, UnitedStates Department of Health and Human Services, Bethesda, USA. williamsre@mail.nih.gov
authors.forename: Rebecca J
authors.initials: RJ
authors.lastname: Williams
authors.forename: Tony
authors.initials: T
authors.lastname: Tse
authors.forename: William R
authors.initials: WR
authors.lastname: Harlan
authors.forename: Deborah A
authors.initials: DA
authors.lastname: Zarin
mesh_terms: D015982:Bias; D035843:Biomedical Research / Q000458:organization & administration* / Q000592:standards; D006801:Humans; D009317:National Library of Medicine (U.S.); D012042:Registries; D014481:United States