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.
Levin MJ, Oxman MN, Diamandopoulos GT, Levine AS, Henry PH, Enders JF.Levin MJ, et al. Among authors: oxman mn.Proc Natl Acad Sci U S A. 1969 Feb;62(2):589-96. doi: 10.1073/pnas.62.2.589.Proc Natl Acad Sci U S A. 1969.PMID: 4307716Free PMC article.
Khoury G, Lewis AM Jr, Oxman MN, Levine AS.Khoury G, et al. Among authors: oxman mn.Nat New Biol. 1973 Dec 19;246(155):202-5. doi: 10.1038/newbio246202a0.Nat New Biol. 1973.PMID: 4357857No abstract available.
Oxman MN, Levin MJ.Oxman MN, et al.Proc Natl Acad Sci U S A. 1971 Feb;68(2):299-302. doi: 10.1073/pnas.68.2.299.Proc Natl Acad Sci U S A. 1971.PMID: 5277073Free PMC article.