Volume-outcome relationship in thoracic surgery.
Urschel
J D
JD
Urschel
D M
DM
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