title: [Effects of calcium-antagonists on lower esophageal sphincter pressure. The possibility of application of nifedipine to achalasia].
mesh_terms: D000328:Adult; D000818:Animals; D002121:Calcium Channel Blockers / Q000494:pharmacology*; D004285:Dogs; D004931:Esophageal Achalasia / Q000188:drug therapy*; D004943:Esophagogastric Junction / Q000187:drug effects / Q000502:physiology*; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D009543:Nifedipine / Q000627:therapeutic use*; D011312:Pressure; D011725:Pyridines / Q000627:therapeutic use*
chemical_list: D002121:Calcium Channel Blockers; D011725:Pyridines; D009543:Nifedipine