Clinical research in gastroenterology: history and future prospects.
Booth
C C
CC
Royal College of Physicians, London, UK.
D004739:England; D005060:Europe; D005762:Gastroenterology / Q000266:history* / Q000639:trends; D049670:History, 17th Century; D049671:History, 18th Century; D049672:History, 19th Century; D049673:History, 20th Century; D006801:Humans; D007564:Japan; D012106:Research / Q000266:history / Q000639:trends; D014481:United States