title: Safety surveillance of longitudinal databases: methodological considerations.
authors.affiliation: Uppsala Monitoring Centre, WHO Collaborating Centre for International Drug Monitoring, Uppsala, Sweden. niklas.noren@who-umc.org
authors.forename: G Niklas
authors.initials: GN
authors.lastname: Norén
authors.forename: Johan
authors.initials: J
authors.lastname: Hopstadius
authors.forename: Andrew
authors.initials: A
authors.lastname: Bate
authors.forename: I Ralph
authors.initials: IR
authors.lastname: Edwards
mesh_terms: D016907:Adverse Drug Reaction Reporting Systems / Q000706:statistics & numerical data*; D016208:Databases, Factual / Q000706:statistics & numerical data*; D064420:Drug-Related Side Effects and Adverse Reactions / Q000453:epidemiology*; D006801:Humans