Successful treatment of percutaneous transhepatic papillary dilation in patients with obstructive jaundice due to common bile duct stones after Billroth II gastrectomy: report of two emergent cases. - Shirai,N.; Hanai,H.; Kajimura,M.; Kataoka,H.; Yoshida,K.; Nakagawara,M.; Nemoto,M.; Nagasawa,M.; Kaneko,E. (J Clin Gastroenterol, 2000)