An official website of the United States government
The .gov means it’s official.
Federal government websites often end in .gov or .mil. Before
sharing sensitive information, make sure you’re on a federal
government site.
The site is secure.
The https:// ensures that you are connecting to the
official website and that any information you provide is encrypted
and transmitted securely.
Feldman M, Richardson CT, Fordtran JS.Feldman M, et al. Among authors: fordtran js.Gastroenterology. 1980 Nov;79(5 Pt 1):796-800.Gastroenterology. 1980.PMID: 7419002
Feldman M, Richardson CT, Fordtran JS.Feldman M, et al. Among authors: fordtran js.Gastroenterology. 1980 Nov;79(5 Pt 1):792-5.Gastroenterology. 1980.PMID: 7419001
Emmett M, Hootkins RE, Fine KD, Santa Ana CA, Porter JL, Fordtran JS.Emmett M, et al. Among authors: fordtran js.Gastroenterology. 1995 Mar;108(3):752-60. doi: 10.1016/0016-5085(95)90448-4.Gastroenterology. 1995.PMID: 7875477Clinical Trial.