The American Gastroenterological Association: second century of leadership.
Freston
J W
JW
Department of Medicine-LG006, University of Connecticut Health Center, Farmington, 06032. USA.
D005762:Gastroenterology; D006285:Health Planning; D006801:Humans; D008329:Managed Care Programs; D012955:Societies, Medical / Q000458:organization & administration / Q000639:trends; D014481:United States