1. Kelly TR, Schlueter TM (1964) Choledochal cyst with coexistent carcinoma of the pancreas. Am Surg 30:209–212
2. Komi N, Kunitomo K, Tamura T, Udaka H, Miyoshi Y, Takehara H (1984) Nationwide survey of cases of choledochal cyst: analysis of coexistent anomalies, complications and surgical treatment in 645 cases. Surg Gastroenterol 3:69–73
3. Kozumi K, Kodama T (1916) A case of cystic dilatation of the common bile duct and etiology of the disease (in Japanese). Tokyo Med J 30:1413–1423
4. Babbitt DP (1969) Congenital choledochal cysts: new etiological concept based on anomalous relationships of the common bile duct and pancreatic bulb. Ann Surg (Paris) 12:231–240
5. Hasumi A, Matsui H, Sugioka A, Uyama I, Komori Y, Fujita J, Aoki H (2000) Precancerous conditions of biliary tract cancer in patients with pancreaticobiliary maljunction: reappraisal of nationwide survey in Japan. J Hepatobiliary Pancreat Surg 7:551–555