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.
Tangka FK, Howard DH, Royalty J, Dalzell LP, Miller J, O'Hara BJ, Sabatino SA, Joseph K, Kenney K, Guy GP Jr, Hall IJ.Tangka FK, et al.Cancer Causes Control. 2015 May;26(5):671-86. doi: 10.1007/s10552-015-0524-5. Epub 2015 Mar 18.Cancer Causes Control. 2015.PMID: 25783455Free PMC article.