title: Analgesic effect of vaginal stimulation in rats: modulation by graded stimulus intensity and hormones.
mesh_terms: D000220:Adaptation, Biological; D000698:Analgesia; D000818:Animals; D002369:Castration; D002395:Catecholamines / Q000502:physiology; D004597:Electroshock; D004958:Estradiol / Q000494:pharmacology*; D005260:Female; D010146:Pain / Q000517:prevention & control; D010812:Physical Stimulation; D011374:Progesterone / Q000494:pharmacology*; D051381:Rats; D013623:Tail; D014621:Vagina / Q000502:physiology*; D014828:Vocalization, Animal / Q000187:drug effects
chemical_list: D002395:Catecholamines; D011374:Progesterone; D004958:Estradiol