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.
Brolund A, Franzén O, Melefors O, Tegmark-Wisell K, Sandegren L.Brolund A, et al.PLoS One. 2013 Jun 13;8(6):e65793. doi: 10.1371/journal.pone.0065793. Print 2013.PLoS One. 2013.PMID: 23785449Free PMC article.
Brolund A, Sundqvist M, Kahlmeter G, Grape M.Brolund A, et al.PLoS One. 2010 Feb 16;5(2):e9233. doi: 10.1371/journal.pone.0009233.PLoS One. 2010.PMID: 20169085Free PMC article.