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.
Reger B, Cooper L, Booth-Butterfield S, Smith H, Bauman A, Wootan M, Middlestadt S, Marcus B, Greer F.Reger B, et al.Prev Med. 2002 Sep;35(3):285-92. doi: 10.1006/pmed.2002.1074.Prev Med. 2002.PMID: 12202072
Reger-Nash B, Bauman A, Booth-Butterfield S, Cooper L, Smith H, Chey T, Simon KJ.Reger-Nash B, et al.Fam Community Health. 2005 Jan-Mar;28(1):64-78. doi: 10.1097/00003727-200501000-00009.Fam Community Health. 2005.PMID: 15625507