title: Factors modifying the head-twitch response to 5-hydroxytryptophan.
mesh_terms: D006916:5-Hydroxytryptophan / Q000494:pharmacology*; D000772:Anesthesia, Local; D000818:Animals; D002940:Circadian Rhythm; D004431:Ear, External / Q000187:drug effects; D004971:Estrus; D005260:Female; D006257:Head; D051379:Mice; D009068:Movement / Q000187:drug effects*; D011247:Pregnancy; D012934:Social Isolation; D013016:Sound; D013997:Time Factors; D014992:Xylenes / Q000494:pharmacology
chemical_list: D014992:Xylenes; D006916:5-Hydroxytryptophan