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.
Sims CR, Ostrosky-Zeichner L, Rex JH.Sims CR, et al.Arch Med Res. 2005 Nov-Dec;36(6):660-71. doi: 10.1016/j.arcmed.2005.05.015.Arch Med Res. 2005.PMID: 16216647Review.