title: Letter: Grazing horses on dressed pasture.
mesh_terms: D000818:Animals; D003967:Diarrhea / Q000139:chemically induced / Q000662:veterinary*; D006197:Hair; D006734:Horse Diseases / Q000139:chemically induced*; D006736:Horses; D012722:Sewage
chemical_list: D012722:Sewage