title: Letter: Estrogenic substances in beef.
mesh_terms: D000821:Animal Feed; D000818:Animals; D002417:Cattle; D004054:Diethylstilbestrol / Q000032:analysis*; D004967:Estrogens / Q000032:analysis* / Q000096:biosynthesis; D004966:Estrogens, Conjugated (USP) / Q000032:analysis; D005260:Female; D005504:Food Analysis; D006801:Humans; D008297:Male; D008460:Meat / Q000032:analysis*; D051379:Mice; D011863:Radioimmunoassay
chemical_list: D004967:Estrogens; D004966:Estrogens, Conjugated (USP); D004054:Diethylstilbestrol