RT Journal Article SR Electronic T1 Short chain fatty acids in the human colon. JF Gut JO Gut FD BMJ Publishing Group Ltd and British Society of Gastroenterology SP 763 OP 779 DO 10.1136/gut.22.9.763 VO 22 IS 9 A1 Cummings, J H YR 1981 UL http://gut.bmj.com/content/22/9/763.abstract AB