5Phillips EH, Carroll BJ, Bello JM, et al. Laparoscopic cholecystectomy in acute cholecystitis [ J ]. Am Surg, 1992,58 (5) : 273- 276.
6Hawasli A. Timing of laparoscopic cholecystectomy in acute cholecystitis [ J]. J Laparoendosc Surg, 1994,4 (1) :9-16.
7Kunasani R, Kohli H. Significance of the cystic node in preventing major bile duct injuries during laparoscopic cholecystectomy: a technical marker [J]. J Laparoenolosc Adv Surg Tech A, 2003,13 ( 5 ) : 321-323.