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.
Ha NB, Ha NB, Ahmed A, Ayoub W, Daugherty TJ, Chang ET, Lutchman GA, Garcia G, Cooper AD, Keeffe EB, Nguyen MH.Ha NB, et al. Among authors: nguyen mh.Cancer Causes Control. 2012 Mar;23(3):455-62. doi: 10.1007/s10552-012-9895-z. Epub 2012 Jan 19.Cancer Causes Control. 2012.PMID: 22258434