title: Peak expiratory flow rates in chronic asthma. A gauge of progression and improvement.
mesh_terms: D000293:Adolescent; D000402:Airway Obstruction / Q000175:diagnosis; D001249:Asthma / Q000175:diagnosis* / Q000188:drug therapy / Q000503:physiopathology; D002648:Child; D004205:Cromolyn Sodium / Q000627:therapeutic use; D005260:Female; D006801:Humans; D007545:Isoproterenol / Q000627:therapeutic use; D008134:Long-Term Care; D008297:Male; D012621:Seasons; D013147:Spirometry; D013997:Time Factors
chemical_list: D007545:Isoproterenol; D004205:Cromolyn Sodium