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.
Jeffreys M, Smith GD, Martin RM, Frankel S, Gunnell D.Jeffreys M, et al. Among authors: gunnell d.Int J Cancer. 2004 Nov 1;112(2):348-51. doi: 10.1002/ijc.20423.Int J Cancer. 2004.PMID: 15352051Free article.
Whitley E, Martin RM, Smith GD, Holly JM, Gunnell D.Whitley E, et al. Among authors: gunnell d.Cancer Causes Control. 2009 Mar;20(2):243-51. doi: 10.1007/s10552-008-9239-1. Epub 2008 Oct 15.Cancer Causes Control. 2009.PMID: 18855108