6Liew NC, Moissinac K, Gul Y. Postoperative venous thromboembolism in Asia: a critical appraisal of its incidence [J]. Asian J Surg, 2003,26(3): 154-158.
7Sakon M, Maehara Y, Yoshikawa H. Incidence of venous thromboembolism following major abdominal surgery: A multi-center, prospective epidemiological study in Japan [J]. J Thromb Haemost, 2006,4(3):581-586.
8Mukherjee D, Lidor AO , Chu KM.Postoperative venous thromboembolism rates vary significantly after different types of major abdominal operations [J]. J Gastrointest Surg, 2008, 12(11): 2015-2022.
9Agnelli G, Bolis G, Capussotti L. A clinical outcome-based prospective study on venous thromboembnlism after cancer surgery: the RISTOS project[J].Ann Surg, 2006, 243(1):89-95.
10Einstein MH, Pritts EA, Hartenbach EM. Venous thromboembolism prevention in gynecologic cancer surgery: a systematic review[J]. Gynecol Oncol, 2007,105(3): 813-819.