the role of es and stone removal in cholelithiasis of patients with gallbladders in situ and low surgical risk remains controversial , as does the treatment of patients with sump syndrome after choledochoduodenostomy , with biliary-cutaneous or biliary-enteric fistulas and benign strictures , which must be evaluated by accurate comparative studies .
C0008350
cholelithiasis
C0016976
gallbladders