Biotransformation of N-Ethyl perfluorooctanesulfonamide by rainbow trout (Onchorhynchus mykiss) liver microsomes - Braekevelt, Eric.; Brinkworth, Lyndon.; Budakowski, Wes R.; Friesen, Ken.; Palace, Vince P.; Tittlemier, Sheryl A.; Tomy, Gregg T.