RT Journal Article SR Electronic T1 Intraductal papillary mucinous neoplasms (IPMNs): is it time to (sometimes) spare the knife? JF Gut JO Gut FD BMJ Publishing Group Ltd and British Society of Gastroenterology SP 287 OP 289 DO 10.1136/gut.2007.135392 VO 57 IS 3 A1 Claudio Bassi A1 Stefano Crippa A1 Roberto Salvia YR 2008 UL http://gut.bmj.com/content/57/3/287.abstract AB