4Oira A, Alvarez J, Chiappetta L,et al. Choledocholithiasis inacute gallstone panereatitis:accidence and clinical significance[J]. Arch-Surg,1991,126(5):566.
5Flosch UR, Nitscht R, Ludtke R,et al. Early ERCP and papillotomy compared with conservative treatment for acute biliary pancreatitis[J]. N Engl J Med,1997,336(4) :237.
6Carvalho FR , Santos JS , Elias Junior J ,et al. The influence of treatment access regulation and tech- nological resources on the mortality profile of acute biliary pancreatitis [J] . Acta Cir Bras ,2008 ,23 Suppl 1:143.
