1Samuel Eldar, Hava T, Siegelmann, et al. Conversion of laparoscopic cholecystectomy to open chlecystectomy in acute cholecystitis:Artifial Neural Netwoks improve the prediction of conversion[J]. World J Surg, 2002; 26: 79 - 85.
2Habib FA, Kolachalam RB, Mittal VK, et al. Role of laparoscopic cholecystectomy in the management of gangrenous cholecystitis[J]. Am J Surg,2001; 181:71 - 75.
3Madan AK,Tesi D,Flint LM,et al. How early is early laparoscopic treatment of acute cholecystitis [J] ? Am J Surg,2002; 183:232- 236.
4Kenny PK, Richard CT, Levil D, et al. Laparoscopic cholcystectomy in acute cholecystitis[J]. Arch Surg, 1996; 131:540- 546.
5Santamborgio R, Montorsi M, Bianchi P, et al. Technical difficulties and complications during laparoscopic cholecystectomy: predictive use of preoperative ultrasonography[ J ]. World J Surg, 1996; 20: 978 - 981.
