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.
Lerdal A, Wahl A, Rustøen T, Hanestad BR, Moum T.Lerdal A, et al.Scand J Public Health. 2005;33(2):123-30. doi: 10.1080/14034940410028406.Scand J Public Health. 2005.PMID: 15823973
Norekvål TM, Wahl AK, Fridlund B, Nordrehaug JE, Wentzel-Larsen T, Hanestad BR.Norekvål TM, et al. Among authors: wahl ak.Health Qual Life Outcomes. 2007 Oct 30;5:58. doi: 10.1186/1477-7525-5-58.Health Qual Life Outcomes. 2007.PMID: 17971206Free PMC article.