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.
Mirzaei H, Schmidt KH.Mirzaei H, et al. Among authors: schmidt kh.Proc Natl Acad Sci U S A. 2012 Nov 20;109(47):19357-62. doi: 10.1073/pnas.1210304109. Epub 2012 Nov 5.Proc Natl Acad Sci U S A. 2012.PMID: 23129629Free PMC article.