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.
Melberg A, Onarheim KH, Spjeldnæs AO, Miljeteig I.Melberg A, et al.Tidsskr Nor Laegeforen. 2017 Dec 20;137(1). doi: 10.4045/tidsskr.17.0683. Print 2018 Jan 9.Tidsskr Nor Laegeforen. 2017.PMID: 29313648Free article.Norwegian.No abstract available.