title: Gastroesophageal sphincteric pressures before and after oral anticholinergic drug and placebo administration.
mesh_terms: D000328:Adult; D004311:Double-Blind Method; D004943:Esophagogastric Junction / Q000187:drug effects* / Q000502:physiology; D005260:Female; D006801:Humans; D008297:Male; D010276:Parasympatholytics / Q000494:pharmacology; D011312:Pressure; D000644:Quaternary Ammonium Compounds / Q000494:pharmacology*
chemical_list: D010276:Parasympatholytics; D000644:Quaternary Ammonium Compounds