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.
Mortensen M, Kristiansen U, Ebert B, Frølund B, Krogsgaard-Larsen P, Smart TG.Mortensen M, et al. Among authors: smart tg.J Physiol. 2004 Jun 1;557(Pt 2):389-413. doi: 10.1113/jphysiol.2003.054734. Epub 2004 Feb 27.J Physiol. 2004.PMID: 14990676Free PMC article.