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.
Lynch KM, Lyles RH, Waller LA, Abadi AM, Bell JE, Gribble MO.Lynch KM, et al. Among authors: waller la.Environ Health. 2020 May 18;19(1):52. doi: 10.1186/s12940-020-00597-8.Environ Health. 2020.PMID: 32423443Free PMC article.
Darrow LA, Strickland MJ, Klein M, Waller LA, Flanders WD, Correa A, Marcus M, Tolbert PE.Darrow LA, et al. Among authors: waller la.Epidemiology. 2009 Sep;20(5):699-706. doi: 10.1097/EDE.0b013e3181a66e96.Epidemiology. 2009.PMID: 19535987Free PMC article.