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Simplified metabolism scheme of PCB 136 atropisomers showing major HO-PCB metabolites investigated and the corresponding abbreviations. Only one atropisomer of PCB 136 and the corresponding metabolites are shown for clarity reasons. P450, cytochrome P450 enzyme; UGT, uridine 5′-diphospho-glucuronosyltransferase; SULT, sulfotransferase; Glc, glucuronide.
