RT Journal Article SR Electronic T1 Keeping neuroendocrine cells in check: roles for TGFβ, Smads, and menin? JF Gut JO Gut FD BMJ Publishing Group Ltd and British Society of Gastroenterology SP 1237 OP 1239 DO 10.1136/gut.52.9.1237 VO 52 IS 9 A1 Dockray, G J YR 2003 UL http://gut.bmj.com/content/52/9/1237.abstract AB