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Effects of in vitro perfluorooctanoic acid exposure on sex steroid hormone level production by antral follicles. Culture media was subjected to enzyme-linked immunosorbent assays. Graphs represent means ± SEM from 3 to 7 independent experiments per treatment group. Asterisk (*) indicates significant difference from the control (p ≤ .05) and (^) indicates differences trending towards significance (.05 < p ≤ .1).
