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.
Kwon OY, Tuttle LJ, Johnson JE, Mueller MJ.Kwon OY, et al. Among authors: mueller mj.Clin Biomech (Bristol, Avon). 2009 Oct;24(8):670-5. doi: 10.1016/j.clinbiomech.2009.05.010. Epub 2009 Jun 16.Clin Biomech (Bristol, Avon). 2009.PMID: 19535185Free PMC article.