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.
Gajjar A, Chintagumpala MM, Bowers DC, Jones-Wallace D, Stewart CF, Crews KR.Gajjar A, et al. Among authors: crews kr.Cancer. 2003 May 1;97(9 Suppl):2374-80. doi: 10.1002/cncr.11308.Cancer. 2003.PMID: 12712459Free article.