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.
Hoffart A, Bille H, Olsen B, Gude T, Mygind-Klausen O, Gilje B, Rolie JP, Thornes K.Hoffart A, et al.Tidsskr Nor Laegeforen. 1990 Sep 20;110(22):2889-92.Tidsskr Nor Laegeforen. 1990.PMID: 2219069Norwegian.
Hoffart A, Thornes K, Hedley LM.Hoffart A, et al.Psychiatry Res. 1995 Jan 31;56(1):1-9. doi: 10.1016/0165-1781(94)02613-n.Psychiatry Res. 1995.PMID: 7792336