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.
Cicirelli MF, Tonks NK, Diltz CD, Weiel JE, Fischer EH, Krebs EG.Cicirelli MF, et al. Among authors: fischer eh.Proc Natl Acad Sci U S A. 1990 Jul;87(14):5514-8. doi: 10.1073/pnas.87.14.5514.Proc Natl Acad Sci U S A. 1990.PMID: 2164686Free PMC article.
Cool DE, Tonks NK, Charbonneau H, Fischer EH, Krebs EG.Cool DE, et al. Among authors: fischer eh.Proc Natl Acad Sci U S A. 1990 Sep;87(18):7280-4. doi: 10.1073/pnas.87.18.7280.Proc Natl Acad Sci U S A. 1990.PMID: 2169624Free PMC article.
Charbonneau H, Tonks NK, Kumar S, Diltz CD, Harrylock M, Cool DE, Krebs EG, Fischer EH, Walsh KA.Charbonneau H, et al. Among authors: fischer eh.Proc Natl Acad Sci U S A. 1989 Jul;86(14):5252-6. doi: 10.1073/pnas.86.14.5252.Proc Natl Acad Sci U S A. 1989.PMID: 2546149Free PMC article.