Resident surgery--is it safe?
D003082:Colectomy / Q000401:mortality; D003106:Colon / Q000601:surgery; D013502:General Surgery / Q000193:education*; D006801:Humans; D007396:Internship and Residency; D011183:Postoperative Complications; D011787:Quality of Health Care; D012189:Retrospective Studies