title: The effect of metaproterenol in chronic asthmatic children receiving therapeutic doses of theophylline.
mesh_terms: D000293:Adolescent; D001249:Asthma / Q000188:drug therapy*; D002648:Child; D002986:Clinical Trials as Topic; D004311:Double-Blind Method; D005260:Female; D006801:Humans; D008297:Male; D009921:Metaproterenol / Q000009:adverse effects / Q000494:pharmacology*; D012129:Respiratory Function Tests; D013806:Theophylline / Q000097:blood / Q000627:therapeutic use*
chemical_list: D009921:Metaproterenol; D013806:Theophylline