title: Plasma estrogen concentrations in non-implanted and Synovex-S implanted feedlot steers.
mesh_terms: D000818:Animals; D002417:Cattle; D004338:Drug Combinations; D004343:Drug Implants; D004958:Estradiol / Q000008:administration & dosage / Q000494:pharmacology*; D004967:Estrogens / Q000097:blood*; D004970:Estrone / Q000494:pharmacology; D006128:Growth / Q000187:drug effects; D008297:Male; D011374:Progesterone / Q000008:administration & dosage / Q000494:pharmacology*
chemical_list: D004338:Drug Combinations; D004343:Drug Implants; D004967:Estrogens; D004970:Estrone; D011374:Progesterone; D004958:Estradiol