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.
Anderssen N, Jacobs DR Jr, Sidney S, Bild DE, Sternfeld B, Slattery ML, Hannan P.Anderssen N, et al.Am J Epidemiol. 1996 Feb 15;143(4):351-62. doi: 10.1093/oxfordjournals.aje.a008749.Am J Epidemiol. 1996.PMID: 8633619
Brown JE, Potter JD, Jacobs DR Jr, Kopher RA, Rourke MJ, Barosso GM, Hannan PJ, Schmid LA.Brown JE, et al. Among authors: hannan pj.Epidemiology. 1996 Jan;7(1):62-6. doi: 10.1097/00001648-199601000-00011.Epidemiology. 1996.PMID: 8664403