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.
Koop I, Koop H, Gerhardt C, Schafmayer A, Arnold R.Koop I, et al. Among authors: arnold r.Scand J Gastroenterol. 1989 Apr;24(3):315-20. doi: 10.3109/00365528909093053.Scand J Gastroenterol. 1989.PMID: 2734590
Eissele R, Koop I, Schaar M, Koop H, Arnold R.Eissele R, et al. Among authors: arnold r.Regul Pept. 1991 Feb 26;32(3):333-40. doi: 10.1016/0167-0115(91)90026-d.Regul Pept. 1991.PMID: 1678197
Adler G, Beglinger C, Braun U, Reinshagen M, Koop I, Schafmayer A, Rovati L, Arnold R.Adler G, et al. Among authors: arnold r.Gastroenterology. 1991 Feb;100(2):537-43. doi: 10.1016/0016-5085(91)90227-c.Gastroenterology. 1991.PMID: 1702077
Koop I, Dorn S, Koop H, Witzleb S, Beglinger C, Schafmayer A, Arnold R.Koop I, et al. Among authors: arnold r.Dig Dis Sci. 1991 Nov;36(11):1625-32. doi: 10.1007/BF01296408.Dig Dis Sci. 1991.PMID: 1935502
Koop I, Ruppert-Seipp G, Koop H, Schafmayer A, Arnold R.Koop I, et al. Among authors: arnold r.Digestion. 1990;46(4):220-7. doi: 10.1159/000200349.Digestion. 1990.PMID: 2282997
Adler G, Reinshagen M, Koop I, Göke B, Schafmayer A, Rovati LC, Arnold R.Adler G, et al. Among authors: arnold r.Gastroenterology. 1989 Apr;96(4):1158-64. doi: 10.1016/0016-5085(89)91636-3.Gastroenterology. 1989.PMID: 2647576
Koop I, Fellgiebel A, Koop H, Schafmayer A, Arnold R.Koop I, et al. Among authors: arnold r.Eur J Clin Invest. 1988 Oct;18(5):517-23. doi: 10.1111/j.1365-2362.1988.tb01050.x.Eur J Clin Invest. 1988.PMID: 3147905Clinical Trial.
Adler G, Müllenhoff A, Bozkurt T, Göke B, Koop I, Arnold R.Adler G, et al. Among authors: arnold r.Scand J Gastroenterol. 1988 Mar;23(2):158-62. doi: 10.3109/00365528809103961.Scand J Gastroenterol. 1988.PMID: 3363288Clinical Trial.
Koop I, Kimmich T, Koop H, Arnold R.Koop I, et al. Among authors: arnold r.Digestion. 1987;38(2):114-23. doi: 10.1159/000199580.Digestion. 1987.PMID: 3440506