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.
Saftlas AF, Logsden-Sackett N, Wang W, Woolson R, Bracken MB.Saftlas AF, et al.Am J Epidemiol. 2004 Oct 15;160(8):758-65. doi: 10.1093/aje/kwh277.Am J Epidemiol. 2004.PMID: 15466498
Saftlas AF, Rubenstein L, Prater K, Harland KK, Field E, Triche EW.Saftlas AF, et al.J Reprod Immunol. 2014 Mar;101-102:104-110. doi: 10.1016/j.jri.2013.07.006. Epub 2013 Aug 15.J Reprod Immunol. 2014.PMID: 24011785