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.
Al-Saidy OM, Piegorsch WW, West RW, Nitcheva DK.Al-Saidy OM, et al. Among authors: piegorsch ww.Biometrics. 2003 Dec;59(4):1056-62. doi: 10.1111/j.0006-341x.2003.00121.x.Biometrics. 2003.PMID: 14969485
Buckley BE, Piegorsch WW, West RW.Buckley BE, et al. Among authors: piegorsch ww.Environ Ecol Stat. 2009 Mar 1;16(1):53-62. doi: 10.1007/s10651-007-0076-2.Environ Ecol Stat. 2009.PMID: 20160851Free PMC article.