8Bellomo R, Goldsmith D, Uchino S,et al.Prospective controlled trial of effect of medical emergency team on postoperative morbidity and mortality rates[J]. Crit Care Med, 2004,32∶916-921.
9Theodoropoulos G, Lloyd LR, Cousins G,et al. Intraoperative and early postoperative gastric intramucosal pH predicts morbidity and mortality after major abdominal surgery[J]. Am Surg, 2001, 67∶303-308.
10Koperna T, Kisser M, Schulz F. Emergency surgery for colon cancer in the aged[J]. Arch Surg, 1997,132∶1032-1037.