RT Journal Article SR Electronic T1 Paradoxical responses of plasma glucagon and bile acid levels after duodenal nutrient exclusion JF Gut JO Gut FD BMJ Publishing Group Ltd and British Society of Gastroenterology SP 516 OP 516 DO 10.1136/gutjnl-2014-307607 VO 64 IS 3 A1 Po-Chun Chen A1 Akio Inui A1 Chih-Yen Chen YR 2015 UL http://gut.bmj.com/content/64/3/516.1.abstract AB