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.
Fleming JG, Summers MD.Fleming JG, et al.Proc Natl Acad Sci U S A. 1991 Nov 1;88(21):9770-4. doi: 10.1073/pnas.88.21.9770.Proc Natl Acad Sci U S A. 1991.PMID: 1946402Free PMC article.
Park K, Atchison ML.Park K, et al.Proc Natl Acad Sci U S A. 1991 Nov 1;88(21):9804-8. doi: 10.1073/pnas.88.21.9804.Proc Natl Acad Sci U S A. 1991.PMID: 1946405Free PMC article.
Rodríguez-Cerezo E, Klein PG, Shaw JG.Rodríguez-Cerezo E, et al.Proc Natl Acad Sci U S A. 1991 Nov 1;88(21):9863-7. doi: 10.1073/pnas.88.21.9863.Proc Natl Acad Sci U S A. 1991.PMID: 1946413Free PMC article.
Hariharan N, Kelley DE, Perry RP.Hariharan N, et al.Proc Natl Acad Sci U S A. 1991 Nov 1;88(21):9799-803. doi: 10.1073/pnas.88.21.9799.Proc Natl Acad Sci U S A. 1991.PMID: 1946404Free PMC article.
Dittrich H, Kutchan TM.Dittrich H, et al.Proc Natl Acad Sci U S A. 1991 Nov 15;88(22):9969-73. doi: 10.1073/pnas.88.22.9969.Proc Natl Acad Sci U S A. 1991.PMID: 1946465Free PMC article.