The Society of Gastro-Intestinal Radiologists.
D004064:Digestive System / Q000000981:diagnostic imaging; D049672:History, 19th Century; D049673:History, 20th Century; D009717:Numismatics; D011859:Radiography; D011871:Radiology / Q000266:history*; D012955:Societies, Medical / Q000266:history*; D014481:United States