4Guoli Liu.Current Status of laparoscopie surgery in china:Review of more than 15000 case[J].Dig Endose,1999,11:215 -219.
5Deziel DJ,Millikan KW,Economous SG,et al.Complications of laparoscopic vcholecystectomy:A national survey of 4292 hospitals and and analysis of 77604 cases[J].Am J Surg,1993,165:9.
6Vechio R,Mac Fadyen B V.Laparoseopio cholecyscectomy:Review of 40 US published seties[J].Surg Endosc,1998,12:547.