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.
Hagler WS, Jarrett WH, Presley GD.Hagler WS, et al.South Med J. 1971 Mar;64(3):354-8. doi: 10.1097/00007611-197103000-00021.South Med J. 1971.PMID: 5547927No abstract available.