title: A 12-month double-blind clinical comparison of betamethasone valerate and sodium chromoglycate in the treatment of asthma.
mesh_terms: D000328:Adult; D000368:Aged; D001249:Asthma / Q000188:drug therapy*; D001623:Betamethasone / Q000031:analogs & derivatives*; D001624:Betamethasone Valerate / Q000627:therapeutic use*; D002986:Clinical Trials as Topic; D004205:Cromolyn Sodium / Q000627:therapeutic use*; D004311:Double-Blind Method; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D013997:Time Factors
chemical_list: D001623:Betamethasone; D001624:Betamethasone Valerate; D004205:Cromolyn Sodium