title: Action of drugs on the human colonic preparations of Hirschsprung's disease.
mesh_terms: D000109:Acetylcholine / Q000494:pharmacology; D000293:Adolescent; D002648:Child; D002675:Child, Preschool; D003106:Colon / Q000187:drug effects / Q000503:physiopathology*; D004246:Dimethylphenylpiperazinium Iodide / Q000494:pharmacology; D006801:Humans; D066298:In Vitro Techniques; D007223:Infant; D008531:Megacolon / Q000503:physiopathology*; D009119:Muscle Contraction / Q000187:drug effects; D009130:Muscle, Smooth / Q000187:drug effects; D009538:Nicotine / Q000494:pharmacology; D011229:Preanesthetic Medication; D012701:Serotonin / Q000494:pharmacology
chemical_list: D012701:Serotonin; D004246:Dimethylphenylpiperazinium Iodide; D009538:Nicotine; D000109:Acetylcholine