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.
Kramer RA, DeChiara TM, Schaber MD, Hilliker S.Kramer RA, et al.Proc Natl Acad Sci U S A. 1984 Jan;81(2):367-70. doi: 10.1073/pnas.81.2.367.Proc Natl Acad Sci U S A. 1984.PMID: 6320183Free PMC article.
Miyamoto C, Chizzonite R, Crowl R, Rupprecht K, Kramer R, Schaber M, Kumar G, Poonian M, Ju G.Miyamoto C, et al.Proc Natl Acad Sci U S A. 1985 Nov;82(21):7232-6. doi: 10.1073/pnas.82.21.7232.Proc Natl Acad Sci U S A. 1985.PMID: 3903749Free PMC article.
Kramer RA, Andersen N.Kramer RA, et al.Proc Natl Acad Sci U S A. 1980 Nov;77(11):6541-5. doi: 10.1073/pnas.77.11.6541.Proc Natl Acad Sci U S A. 1980.PMID: 6256743Free PMC article.