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.
Sivertssen E, Fjeld NB, Semb G.Sivertssen E, et al.Tidsskr Nor Laegeforen. 1996 Sep 20;116(22):2662-5.Tidsskr Nor Laegeforen. 1996.PMID: 8928143Norwegian.
Reikvam A, Abdelnoor M, Sivertssen E.Reikvam A, et al. Among authors: sivertssen e.J Intern Med. 1998 Apr;243(4):259-63. doi: 10.1046/j.1365-2796.1998.00288.x.J Intern Med. 1998.PMID: 9627139Free article.
Sivertssen E, Semb G.Sivertssen E, et al.Tidsskr Nor Laegeforen. 1974 Oct 30;94(30):2111.Tidsskr Nor Laegeforen. 1974.PMID: 4547624Norwegian.No abstract available.
Sivertssen E, Semb G.Sivertssen E, et al.Tidsskr Nor Laegeforen. 1974 Aug 20;94(23):1409-11.Tidsskr Nor Laegeforen. 1974.PMID: 4409992Norwegian.No abstract available.