6Acosta JM, Ronzano GD, Pellegrini CA. Ampullary obstruction monitoring in acute gallstone pancreatitis: a safe accurate and reliable method to detect pancreatic ducted obstruction[ J ]. Am J Gastroentero, 2000,95(1) : 122.
7Lin CL, Lo CM, Fan ST. Acute billary pancreatitis: a prospective randomized trial of timing surgery[J]. Surgery, 1998, 104:600-605.