title: Different levels of risk in surgery.
authors.affiliation: University Department of Medicine, Royal Infirmary, Glasgow, UK.
authors.forename: G D
authors.initials: GD
authors.lastname: Lowe
mesh_terms: D006801:Humans; D011183:Postoperative Complications / Q000517:prevention & control*; D011655:Pulmonary Embolism / Q000209:etiology / Q000517:prevention & control*; D012307:Risk Factors; D013923:Thromboembolism / Q000209:etiology / Q000517:prevention & control*; D013924:Thrombophlebitis / Q000150:complications*