RT Journal Article SR Electronic T1 Chronic pancreatitis and choledochoduodenal anastomosis. JF Gut JO Gut FD BMJ Publishing Group Ltd and British Society of Gastroenterology SP 311 OP 315 DO 10.1136/gut.9.3.311 VO 9 IS 3 A1 M KeclĂ­k A1 P Fric A1 V Smat A1 V Friedberger YR 1968 UL http://gut.bmj.com/content/9/3/311.abstract AB