title: Mortality control charts: assessment of outcome is complex.
authors.forename: Frank A
authors.initials: FA
authors.lastname: Frizelle
authors.forename: John
authors.initials: J
authors.lastname: Frye
mesh_terms: D017052:Hospital Mortality; D006801:Humans; D013503:Surgery Department, Hospital / Q000592:standards*; D016896:Treatment Outcome; D006113:United Kingdom / Q000453:epidemiology