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.
Collen A, Hanemaaijer R, Lupu F, Quax PH, van Lent N, Grimbergen J, Peters E, Koolwijk P, van Hinsbergh VW.Collen A, et al.Blood. 2003 Mar 1;101(5):1810-7. doi: 10.1182/blood-2002-05-1593. Epub 2002 Sep 19.Blood. 2003.PMID: 12393408Free article.