title: The POSSUM system of surgical audit.
authors.affiliation: Warrington Hospital, Lovely Lane, Warrington, Cheshire WA5 1QG, England.
authors.forename: Graham Paul
authors.initials: GP
authors.lastname: Copeland
mesh_terms: D006305:Health Status Indicators; D006801:Humans; D016015:Logistic Models; D008485:Medical Audit; D017063:Outcome Assessment, Health Care / Q000145:classification*; D019984:Quality Indicators, Health Care; D018570:Risk Assessment; D012720:Severity of Illness Index; D013514:Surgical Procedures, Operative / Q000592:standards*