Shale gas development has limited effects on stream biology and geochemistry in a gradient-based, multiparameter study in Pennsylvania - Mumford, Adam; Maloney, Kelly; Akob, Denise M.; Nettemann, Sarah; Proctor, Arianne; Ditty, Jason; Ulsamer, Luke; Lookenbill, Josh; Cozzarelli, Isabelle (Proceedings of the National Academy of Sciences of the United States of America, 2020)