title: Long-term maintenance of receptivity by subcutaneous implants of estradiol.
mesh_terms: D000818:Animals; D002369:Castration; D004305:Dose-Response Relationship, Drug; D004343:Drug Implants; D004958:Estradiol / Q000097:blood / Q000494:pharmacology*; D005260:Female; D051381:Rats; D012726:Sexual Behavior, Animal / Q000187:drug effects*
chemical_list: D004343:Drug Implants; D004958:Estradiol