title: Gallbladder contraction in achalasia of the oesophagus.
mesh_terms: D002217:Carbachol / Q000494:pharmacology*; D004931:Esophageal Achalasia / Q000503:physiopathology*; D005260:Female; D005704:Gallbladder / Q000187:drug effects*; D006801:Humans; D008297:Male
chemical_list: D002217:Carbachol