title: Effects of diltiazem versus nifedipine on lower esophageal sphincter pressure in patients with progressive systemic sclerosis.
mesh_terms: D000328:Adult; D000368:Aged; D001552:Benzazepines / Q000627:therapeutic use*; D002986:Clinical Trials as Topic; D004110:Diltiazem / Q000627:therapeutic use*; D004311:Double-Blind Method; D004935:Esophageal Diseases / Q000188:drug therapy* / Q000209:etiology; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D009543:Nifedipine / Q000627:therapeutic use*; D011897:Random Allocation; D012595:Scleroderma, Systemic / Q000150:complications / Q000188:drug therapy*
chemical_list: D001552:Benzazepines; D004110:Diltiazem; D009543:Nifedipine