title: Detection of changes in mortality after heart surgery. Control limits failed to account for case mix.
authors.forename: S
authors.initials: S
authors.lastname: Gallivan
authors.forename: J
authors.initials: J
authors.lastname: Lovegrove
authors.forename: C
authors.initials: C
authors.lastname: Sherlaw-Johnson
mesh_terms: D006348:Cardiac Surgical Procedures / Q000401:mortality*; D003953:Diagnosis-Related Groups; D006801:Humans; D012307:Risk Factors