title: Unlinked data sources underestimate risk of cardiovascular disease.
authors.forename: Richard J
authors.initials: RJ
authors.lastname: Stevens
authors.forename: Richard
authors.initials: R
authors.lastname: McManus
mesh_terms: D057286:Electronic Health Records / Q000592:standards*; D006801:Humans; D009203:Myocardial Infarction / Q000401:mortality*; D012042:Registries / Q000592:standards*