RT Journal Article SR Electronic T1 Current knowledge on the environmental fate, potential impact, and management of growth-promoting steroids used in the US beef cattle industry JF Journal of Soil and Water Conservation FD Soil and Water Conservation Society SP 325 OP 336 DO 10.2489/jswc.68.4.325 VO 68 IS 4 A1 S. Biswas A1 C.A. Shapiro A1 W.L. Kranz A1 T.L. Mader A1 D.P. Shelton A1 D.D. Snow A1 S.L. Bartelt-Hunt A1 D.D. Tarkalson A1 S.J. van Donk A1 T.C. Zhang A1 S. Ensley YR 2013 UL http://www.jswconline.org/content/68/4/325.abstract AB