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11/21/2017 3:38 PM 1087922 Alvarez et al_2013(Bioassay of estrogenicity and chemical analyses of estrogens in streams across the United States associated with livestock operations).pdf
5/3/2019 2:28 PM <dir> Lit.Reviews
1/28/2013 2:43 PM 3582097 Zaugg et al_2009 lab methods wwc usgs.pdf