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.
Scott KA, Walker RA.Scott KA, et al. Among authors: walker ra.Br J Cancer. 1997;76(10):1288-92. doi: 10.1038/bjc.1997.550.Br J Cancer. 1997.PMID: 9374373Free PMC article.
Gordon LA, Mulligan KT, Maxwell-Jones H, Adams M, Walker RA, Jones JL.Gordon LA, et al. Among authors: walker ra.Int J Cancer. 2003 Aug 10;106(1):8-16. doi: 10.1002/ijc.11172.Int J Cancer. 2003.PMID: 12794751