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.
Salzman DE, Briggs AD, Vaughan WP.Salzman DE, et al.Am J Med Sci. 1997 Apr;313(4):228-35. doi: 10.1097/00000441-199704000-00006.Am J Med Sci. 1997.PMID: 9099153Review.
Lucas KG, Salzman D, Garcia A, Sun Q.Lucas KG, et al.Cancer. 2004 May 1;100(9):1892-901. doi: 10.1002/cncr.20188.Cancer. 2004.PMID: 15112270Free article.Clinical Trial.