6Terzi C, Sokmen S, Secdin S, Albayrak L, Ugurlu M. Polypoid lesions of the gallbladder:report of 100 cases with special reference to operative indications. Surgery 2000;127:622-627.
7Gouma DJ.When are gallbladder polys malignant[J].HPH Surg,2000,11(6):428.
8Tsukaso Azuma,Tasuya Yoshikawa,Tatsuo Araida,et al.Differ-ential dianosis of polypoid lesions of the gallbladder by endo-scopic ultrosongraphy[J].Am J Surg,2001,181:65.
9Nervi F.Freqlluenoy of gallbladder cancer in chile a high-risk area[J].Int J Cancer,1998,51(7):657.
10Okamoto M,Okamoto H,Kitahara F,et al.Ultrasonographic evi-dence of association of polypoid and stones with gallbladdercancer[J].Am J Gastroenterol,1999,94:446.
