title: Effects of testosterone implants in midbrain vocal area of capons.
mesh_terms: D000378:Agonistic Behavior / Q000187:drug effects; D000818:Animals; D002369:Castration; D002645:Chickens; D004343:Drug Implants; D008297:Male; D008636:Mesencephalon / Q000187:drug effects*; D012727:Sex Characteristics; D012726:Sexual Behavior, Animal / Q000187:drug effects; D013739:Testosterone / Q000008:administration & dosage / Q000494:pharmacology*; D014828:Vocalization, Animal / Q000187:drug effects*
chemical_list: D004343:Drug Implants; D013739:Testosterone