title: Discussion.
mesh_terms: D006801:Humans; D061646:Operative Time; D011183:Postoperative Complications / Q000453:epidemiology*; D015397:Program Evaluation; D011785:Quality Assurance, Health Care / Q000379:methods*; D058996:Quality Improvement; D018570:Risk Assessment; D013514:Surgical Procedures, Operative / Q000592:standards*