title: Dealing with variability: the role of pharmacovigilance.
authors.affiliation: Medicines Control Agency, London, UK.
authors.forename: P C
authors.initials: PC
authors.lastname: Waller
mesh_terms: D016907:Adverse Drug Reaction Reporting Systems; D064420:Drug-Related Side Effects and Adverse Reactions; D006801:Humans; D012306:Risk