6Yamashita Y,Takada T,Kawarada Y,et al.Surgical treatment of patients with acute cholecystitis:Tokyo Guidelines[J].J Hepatobiliary Pancreat Surg,2007,14(1):91-97.
7Kama NA,Kologlu M,Doganay M,et al.A risk score for conversion from laparoscopic to open cholecystectomy.Am J Surg,2001,181(6):520-525.
8Kolla SB,Aggarwal S,KumarA,et al.Early versus delayed lapa2 roscop ic cholecystectomy for acute cholecystitis:a p rospective ran2 domized trial.Surg Endosc,2004,18(9):1323-1327.
9Pessaux P,Tuech JJ,Rouge C,et al.Laparoscopic cholecystectomy in acute cholecystitis.A prospective comparative study in patients with acute vs.chronic cholecystitis.Surg Endosc,2000,14(4):358-361.
10Martinez-Cuesta MA,Moreno L,Morillas J,et al.Influence of cholecystitis state on pharmacological response to cholecystokinin of isolated human gallbladder with gallstones[J].Dig Dis Sci,2003,48(5):898-905.