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.
Bjelland I, Dahl AA.Bjelland I, et al. Among authors: dahl aa.Tidsskr Nor Laegeforen. 1999 Sep 20;119(22):3277-80.Tidsskr Nor Laegeforen. 1999.PMID: 10533410Review.Norwegian.
Gudbergsson SB, Dahl AA.Gudbergsson SB, et al. Among authors: dahl aa.Tidsskr Nor Laegeforen. 2009 May 28;129(11):1116-7. doi: 10.4045/tidsskr.08.0620.Tidsskr Nor Laegeforen. 2009.PMID: 19488095Free article.Norwegian.No abstract available.