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Federal
Amphibian metamorphosis assays- biological & histopathological data and range finding studies recent views
U.S. Environmental Protection Agency —
Five chemicals [2-ethylhexyl 4-hydroxybenzoate (2-EHHB), 4-nonylphenol-branched (4-NP), 4-tert-octylphenol (4-OP), benzyl butyl phthalate (BBP) and dibutyl phthalate...