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.
Schwartz GT, Samonds KE, Godfrey LR, Jungers WL, Simons EL.Schwartz GT, et al. Among authors: godfrey lr.Proc Natl Acad Sci U S A. 2002 Apr 30;99(9):6124-9. doi: 10.1073/pnas.092685099.Proc Natl Acad Sci U S A. 2002.PMID: 11983905Free PMC article.
Samonds KE, Godfrey LR, Ali JR, Goodman SM, Vences M, Sutherland MR, Irwin MT, Krause DW.Samonds KE, et al. Among authors: godfrey lr.Proc Natl Acad Sci U S A. 2012 Apr 3;109(14):5352-7. doi: 10.1073/pnas.1113993109. Epub 2012 Mar 19.Proc Natl Acad Sci U S A. 2012.PMID: 22431643Free PMC article.