TY - RPRT TI - Selenium concentrations and enzyme activities of glutathione metabolism in wild long-tailed ducks and common eiders AU - J. Christian Franson AU - David J. Hoffman AU - Paul L. Flint PY - 2011 DO - 10.1002/etc.522 UR - https://pubs.usgs.gov/publication/70004057 ID - 70004057 ER -