Brain Cytochrome P450 Aromatase Gene Isoforms and Activity Levels in Atlantic Salmon After Waterborne Exposure to Nominal Environmental Concentrations of the Pharmaceutical Ethynylestradiol and Antifoulant Tributyltin - Lyssimachou, Angeliki; Jenssen, Bjørn Munro; Arukwe, Augustine (Toxicological Sciences, 2006)