title: A comparison of betamethasone valerate, beclomethasone dipropionate and placebo by inhalation for the treatment of chronic asthma.
mesh_terms: D000293:Adolescent; D000328:Adult; D000336:Aerosols; D000368:Aged; D001249:Asthma / Q000188:drug therapy*; D001507:Beclomethasone / Q000627:therapeutic use; D001624:Betamethasone Valerate / Q000627:therapeutic use; D002648:Child; D002986:Clinical Trials as Topic; D005260:Female; D006801:Humans; D008297:Male; D008775:Methylprednisolone / Q000031:analogs & derivatives*; D008875:Middle Aged; D010919:Placebos; D013375:Substance Withdrawal Syndrome
chemical_list: D000336:Aerosols; D010919:Placebos; D001624:Betamethasone Valerate; D001507:Beclomethasone; D008775:Methylprednisolone