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.
den Hartog G, Jansen JB, van der Meer JW, Lamers CB.den Hartog G, et al. Among authors: jansen jb.Scand J Gastroenterol Suppl. 1992;194:38-40. doi: 10.3109/00365529209096024.Scand J Gastroenterol Suppl. 1992.PMID: 1298045
van de Brug FJ, Jansen JB, Kuijpers IJ, Lamers CB.van de Brug FJ, et al. Among authors: jansen jb.Life Sci. 1990;47(26):2459-64. doi: 10.1016/0024-3205(90)90491-9.Life Sci. 1990.PMID: 2263169