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.
Jackson R, Chambless LE, Yang K, Byrne T, Watson R, Folsom A, Shahar E, Kalsbeek W.Jackson R, et al. Among authors: folsom a.J Clin Epidemiol. 1996 Dec;49(12):1441-46. doi: 10.1016/0895-4356(95)00047-x.J Clin Epidemiol. 1996.PMID: 8970495
Chambless LE, McMahon R, Wu K, Folsom A, Finch A, Shen YL.Chambless LE, et al. Among authors: folsom a.Ann Epidemiol. 1992 Sep;2(5):723-33. doi: 10.1016/1047-2797(92)90017-k.Ann Epidemiol. 1992.PMID: 1342324