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.
Ochman H, Lawrence JG, Groisman EA.Ochman H, et al. Among authors: lawrence jg.Nature. 2000 May 18;405(6784):299-304. doi: 10.1038/35012500.Nature. 2000.PMID: 10830951Review.
Lawrence JG, Ochman H.Lawrence JG, et al.Proc Natl Acad Sci U S A. 1998 Aug 4;95(16):9413-7. doi: 10.1073/pnas.95.16.9413.Proc Natl Acad Sci U S A. 1998.PMID: 9689094Free PMC article.
Lawrence JG, Ochman H, Hartl DL.Lawrence JG, et al.J Gen Microbiol. 1991 Aug;137(8):1911-21. doi: 10.1099/00221287-137-8-1911.J Gen Microbiol. 1991.PMID: 1955870