RT Journal Article SR Electronic T1 Branch intraductal papillary mucinous neoplasms: just the tip of the iceberg? JF Gut JO Gut FD BMJ Publishing Group Ltd and British Society of Gastroenterology SP 1490 OP 1491 DO 10.1136/gut.2008.156380 VO 57 IS 11 A1 Jürgen Weitz A1 Markus W Büchler YR 2008 UL http://gut.bmj.com/content/57/11/1490.abstract AB