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.
Hessner MJ, Endean DJ, Casper JT, Horowitz MM, Keever-Taylor CA, Roth M, Flomenberg N, Drobyski WR.Hessner MJ, et al.Blood. 1995 Nov 15;86(10):3987-96.Blood. 1995.PMID: 7579370Free article.