机构:
Indiana Univ Sch Med, Dept Med, Div Gastroenterol & Hepatol, Indianapolis, IN USA
Indiana Univ, Simon Comprehens Canc Ctr, Indianapolis, IN USA
Indiana Univ Sch Med, Dept Gastroenterol, 702 Rotary Bldg,Suite 225, Indianapolis, IN 46202 USAIndiana Univ Sch Med, Dept Med, Div Gastroenterol & Hepatol, Indianapolis, IN USA