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Nigra AE, Sanchez TR, Nachman KE, Harvey DE, Chillrud SN, Graziano JH, Navas-Acien A. 2017. The effect of the Environmental Protection Agency maximum contaminant level on arsenic exposure in the USA from 2003 to 2014: an analysis of the National Health and Nutrition Examination Survey (NHANES). Lancet Public Health 2:e513-e521. doi:10.1016/s2468-2667(17)30195-0PMID:29250608PMCID:PMC5729579