5Fried CM, Jefyrey S, Barkun MD, et al. Factors determinging conversion to laparostomy in patients undergoing laparoscopic cholecystect[J]. Am J Surg, 1994,167(1) :35.
8Stefanidis D, Richardson WS, Chang L, et al. The role ofdiagnostic laparoscopy for acute abdominal conditions: allevidence based review [J]. Surg Endosc, 2009, 23(1): 16-23.