Cytochrome P4501A biomarker indication of oil exposure in harlequin ducks up to 20 years after the Exxon Valdez oil spill - Esler, Daniel; Trust, Kimberly; Ballachey, Brenda; Iverson, Samuel; Lewis, Tyler L.; Rizzolo, Daniel; Mulcahy, Daniel; Miles, A.; Woodin, Bruce; Stegeman, John; Henderson, John; Wilson, Barry (Environmental Toxicology and Chemistry, 2010)