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.
Ringbaek TJ, Eriksen N, Vestbo J.Ringbaek TJ, et al. Among authors: eriksen n.Ugeskr Laeger. 2003 May 12;165(20):2091-5.Ugeskr Laeger. 2003.PMID: 12812099Review.Danish.
Sommer P, Henrik L, Nielsen R, Eriksen NR, Steven K.Sommer P, et al. Among authors: eriksen nr.Ugeskr Laeger. 1988 Dec 5;150(49):3051-2.Ugeskr Laeger. 1988.PMID: 3201626Danish.No abstract available.