Dr randall burd , a pediatric surgeon and researcher at robert wood johnson medical school , and colleagues looked in particular at postoperative complications , the length of time the patients spent in hospital , how much the hospital charged , and the number of deaths as a result of the surgery 儿外科医师、罗伯特.伍德.约翰逊医学院研究员兰德洱.伯德博士及其同事细致调查了手术并发症、住院时间、费用和由于手术导致的死亡数目。
