TY - RPRT TI - Potential toxicity of complex mixtures in surface waters from a nationwide survey of United States streams: Identifying in vitro bioactivities and causative chemicals AU - Brett R. Blackwell AU - Gerald T. Ankley AU - Paul M. Bradley AU - Keith A. Houck AU - Sergei S. Makarov AU - Alexander V. Medvedev AU - Joe Swintek AU - Daniel L. Villeneuve PY - 2018 DO - 10.1021/acs.est.8b05304 UR - https://pubs.usgs.gov/publication/70201713 ID - 70201713 ER -