title: Effects of nifedipine in achalasia and patients with high-amplitude peristaltic esophageal contractions.
mesh_terms: D004931:Esophageal Achalasia / Q000503:physiopathology*; D004947:Esophagus / Q000187:drug effects*; D006801:Humans; D009543:Nifedipine / Q000494:pharmacology*; D010528:Peristalsis / Q000187:drug effects
chemical_list: D009543:Nifedipine