title: A double-blind comparison of a microcrystalline theophylline tablet and salbutamol in reversible airways obstruction.
mesh_terms: D000328:Adult; D000368:Aged; D000420:Albuterol / Q000627:therapeutic use*; D001249:Asthma / Q000188:drug therapy*; D002908:Chronic Disease; D002986:Clinical Trials as Topic; D005260:Female; D006801:Humans; D008173:Lung Diseases, Obstructive / Q000188:drug therapy*; D008297:Male; D008875:Middle Aged; D013607:Tablets; D013806:Theophylline / Q000008:administration & dosage / Q000627:therapeutic use*
chemical_list: D013607:Tablets; D013806:Theophylline; D000420:Albuterol