5Papi C, Catarci M, D' Ambrosio L, et al. Timing of cholecystectomy foracute calculous cholecystitis : a meta -analysis[ J ]. Am J Gastroenterol, 2004,99( 1 ) :147-155.
6Cho KS, Baek SY, Kang BC, et al. Evaluation of preoperative sonography in acute eholecystitis to predict technical difficulties during laparoscopic cholecystectomy [ J ]. J Clin Ultrasound,2004,32 (3) : l15-122.
7LeeHK, Han HS ,Min SK, et al. Sex -based analysis of the outcome of laparoscopic cholecystectomy for acute cholecystitls [ J]. Br J Surg, 2005,92 ( 4 ) : 463 -466.
8Fagan SP, Awad SS, Rahwan K, et al. Prognostic factors for the develop-ment of gangrenous cho|ecystifis [ J ]. Am J Surg, 2003,186 ( 5 ) : 481 -485.
9Paajanen H, Suuronen S, Nordstrom P, et al. Laparoscopic versus open cholecystectomy in diabetic patients and postoperative outcome [ J ]. Surg Endosc ,2010 Jul 27. [ Epub ahead of print].
10Botaitis S, Polychronidis A, Pitiakoudis M, et al. Does gender affect lapa-roscopic cholecystectomy [ J ] ? Surg Laparosc Endosc Percutan Tech, 2008,18(2) :157-161.
