title: [Cardiospasm in achalasia: demonstration of hypersensitivity of the lower esophageal sphincter].
mesh_terms: D001285:Atropine / Q000494:pharmacology; D004931:Esophageal Achalasia / Q000503:physiopathology*; D004943:Esophagogastric Junction / Q000187:drug effects / Q000294:innervation / Q000503:physiopathology*; D006801:Humans; D008365:Manometry; D008688:Methacholine Compounds / Q000494:pharmacology*
chemical_list: D008688:Methacholine Compounds; D001285:Atropine
vernacular_title: Cardioespasmo en acalasia: demostraciõn de supersensibilidad del esfĩnter esofãgico inferior.