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.
Ahn BY, Moss B.Ahn BY, et al.Proc Natl Acad Sci U S A. 1992 Aug 1;89(15):7060-4. doi: 10.1073/pnas.89.15.7060.Proc Natl Acad Sci U S A. 1992.PMID: 1496000Free PMC article.
Ahn BY, Moss B.Ahn BY, et al.Proc Natl Acad Sci U S A. 1992 Apr 15;89(8):3536-40. doi: 10.1073/pnas.89.8.3536.Proc Natl Acad Sci U S A. 1992.PMID: 1565650Free PMC article.