RT Journal Article SR Electronic T1 Preliminary data on the use of intraductal optical coherence tomography during ERCP for investigating main pancreatic duct strictures JF Gut JO Gut FD BMJ Publishing Group Ltd and British Society of Gastroenterology SP 1680 OP 1681 DO 10.1136/gut.2006.102897 VO 55 IS 11 A1 P A Testoni A1 A Mariani A1 B Mangiavillano A1 P G Arcidiacono A1 E Masci YR 2006 UL http://gut.bmj.com/content/55/11/1680.abstract AB