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.
Shi Y, Schlenker EH.Shi Y, et al. Among authors: schlenker eh.J Appl Physiol (1985). 2002 Jun;92(6):2457-66. doi: 10.1152/japplphysiol.01236.2001.J Appl Physiol (1985). 2002.PMID: 12015360Free article.