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.
Cohen HJ, Drew RT, Johnson JL, Rajagopalan KV.Cohen HJ, et al. Among authors: rajagopalan kv.Proc Natl Acad Sci U S A. 1973 Dec;70(12):3655-9. doi: 10.1073/pnas.70.12.3655.Proc Natl Acad Sci U S A. 1973.PMID: 4519654Free PMC article.
Johnson JL, Rajagopalan KV.Johnson JL, et al. Among authors: rajagopalan kv.Proc Natl Acad Sci U S A. 1982 Nov;79(22):6856-60. doi: 10.1073/pnas.79.22.6856.Proc Natl Acad Sci U S A. 1982.PMID: 6960353Free PMC article.
Johnson JL, Waud WR, Rajagopalan KV, Duran M, Beemer FA, Wadman SK.Johnson JL, et al. Among authors: rajagopalan kv.Proc Natl Acad Sci U S A. 1980 Jun;77(6):3715-9. doi: 10.1073/pnas.77.6.3715.Proc Natl Acad Sci U S A. 1980.PMID: 6997882Free PMC article.
Drew RT, Johnson JL, Rajagopalan KV.Drew RT, et al. Among authors: rajagopalan kv.Arch Environ Health. 1977 May-Jun;32(3):141-2.Arch Environ Health. 1977.PMID: 869598No abstract available.
Johnson JL, Bastian NR, Rajagopalan KV.Johnson JL, et al. Among authors: rajagopalan kv.Proc Natl Acad Sci U S A. 1990 Apr;87(8):3190-4. doi: 10.1073/pnas.87.8.3190.Proc Natl Acad Sci U S A. 1990.PMID: 2326278Free PMC article.