Authors: R W Summers; D M Switz; J T Sessions; J M Becktel; W R Best; F Kern; J W Singleton Journal: Gastroenterology Date: 1979-10 Impact factor: 22.682
Authors: Dale Lee; Lindsey Albenberg; Charlene Compher; Robert Baldassano; David Piccoli; James D Lewis; Gary D Wu Journal: Gastroenterology Date: 2015-01-15 Impact factor: 22.682