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.
Concha M, Graham NM, Muñoz A, Vlahov D, Royal W 3rd, Updike M, Nance-Sproson T, Selnes OA, McArthur JC.Concha M, et al. Among authors: updike m.Am J Epidemiol. 1992 Dec 1;136(11):1338-48. doi: 10.1093/oxfordjournals.aje.a116446.Am J Epidemiol. 1992.PMID: 1362630
Concha M, Selnes OA, Vlahov D, Nance-Sproson T, Updike M, Royal W, Palenicek J, McArthur JC.Concha M, et al. Among authors: updike m.Neuroepidemiology. 1997;16(2):78-85. doi: 10.1159/000109674.Neuroepidemiology. 1997.PMID: 9057169