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.
Nicholson WL, Setlow B, Setlow P.Nicholson WL, et al. Among authors: setlow b, setlow p.Proc Natl Acad Sci U S A. 1991 Oct 1;88(19):8288-92. doi: 10.1073/pnas.88.19.8288.Proc Natl Acad Sci U S A. 1991.PMID: 1924287Free PMC article.
Cowan AE, Koppel DE, Setlow B, Setlow P.Cowan AE, et al. Among authors: setlow b, setlow p.Proc Natl Acad Sci U S A. 2003 Apr 1;100(7):4209-14. doi: 10.1073/pnas.0636762100. Epub 2003 Mar 19.Proc Natl Acad Sci U S A. 2003.PMID: 12646705Free PMC article.
Cowan AE, Olivastro EM, Koppel DE, Loshon CA, Setlow B, Setlow P.Cowan AE, et al. Among authors: setlow b, setlow p.Proc Natl Acad Sci U S A. 2004 May 18;101(20):7733-8. doi: 10.1073/pnas.0306859101. Epub 2004 May 4.Proc Natl Acad Sci U S A. 2004.PMID: 15126669Free PMC article.