title: Relationship between analgesic action of pethidine and its effect on the brain 5-hydroxytryptamine concentration in the rats of different age.
mesh_terms: D000367:Age Factors; D000818:Animals; D001923:Brain Chemistry / Q000187:drug effects*; D005260:Female; D008297:Male; D008614:Meperidine / Q000494:pharmacology*; D010146:Pain / Q000188:drug therapy*; D051381:Rats; D011919:Rats, Inbred Strains; D012701:Serotonin / Q000032:analysis*
chemical_list: D012701:Serotonin; D008614:Meperidine