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.
Carlberg M, Hardell L.Carlberg M, et al. Among authors: hardell l.Pathophysiology. 2012 Sep;19(4):243-52. doi: 10.1016/j.pathophys.2012.07.001. Epub 2012 Aug 28.Pathophysiology. 2012.PMID: 22939605Free article.