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.
Michel YA, Engel L, Rand-Hendriksen K, Augestad LA, Whitehurst DG.Michel YA, et al. Among authors: rand hendriksen k.Health Qual Life Outcomes. 2016 Nov 28;14(1):164. doi: 10.1186/s12955-016-0565-9.Health Qual Life Outcomes. 2016.PMID: 27894349Free PMC article.