Changes in reproductive biomarkers in an endangered fish species (bonytail chub, Gila elegans) exposed to low levels of organic wastewater compounds in a controlled experiment - Walker, David; Paretti, Nicholas V.; Cordy, Gail; Gross, Timothy; Zaugg, Steven; Furlong, Edward; Kolpin, Dana; Matter, William; Gwinn, Jessica; McIntosh, Dennis (Aquatic Toxicology, 2009)