RT Journal Article SR Electronic T1 Brown spots in the bowel JF Gut JO Gut FD BMJ Publishing Group Ltd and British Society of Gastroenterology SP 1744 OP 1744 DO 10.1136/gut.2004.039222 VO 53 IS 12 A1 D R Gaya A1 A J Stanley A1 A K Foulis YR 2004 UL http://gut.bmj.com/content/53/12/1744.abstract AB