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.
Kozinn PJ, Taschdjian CL, Kodsi BE, Wise GJ, Seelig MS, Goldberg PK.Kozinn PJ, et al.Can Med Assoc J. 1982 Jun 15;126(12):1386-90.Can Med Assoc J. 1982.PMID: 7044510Free PMC article.