Current issues on asthma drugs: impact on clinical trial methodology.
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D000318:Adrenergic beta-Agonists / Q000009:adverse effects / Q000627:therapeutic use; D001249:Asthma / Q000188:drug therapy* / Q000401:mortality; D001993:Bronchodilator Agents / Q000009:adverse effects / Q000627:therapeutic use; D002986:Clinical Trials as Topic / Q000379:methods*; D006801:Humans; D012107:Research Design
D000318:Adrenergic beta-Agonists; D001993:Bronchodilator Agents