title: Volume-outcome relationship in thoracic surgery.
authors.forename: J D
authors.initials: JD
authors.lastname: Urschel
authors.forename: D M
authors.initials: DM
authors.lastname: Urschel
mesh_terms: D006761:Hospitals / Q000706:statistics & numerical data; D006801:Humans; D011787:Quality of Health Care; D019616:Thoracic Surgical Procedures / Q000592:standards* / Q000706:statistics & numerical data*; D016896:Treatment Outcome; D014481:United States