title: [Radionuclide esophagography observation on the effect of nitrates in achalasia of the cardia].
authors.forename: S Y
authors.initials: SY
authors.lastname: Wang
mesh_terms: D000328:Adult; D004931:Esophageal Achalasia / Q000000981:diagnostic imaging / Q000188:drug therapy*; D004947:Esophagus / Q000000981:diagnostic imaging*; D005260:Female; D006801:Humans; D007548:Isosorbide Dinitrate / Q000627:therapeutic use*; D008297:Male; D008875:Middle Aged; D011877:Radionuclide Imaging
chemical_list: D007548:Isosorbide Dinitrate