Clinical trials in asthma.
D000818:Animals; D001249:Asthma / Q000188:drug therapy*; D001985:Bronchial Provocation Tests; D001993:Bronchodilator Agents / Q000627:therapeutic use; D002986:Clinical Trials as Topic; D004311:Double-Blind Method; D006801:Humans; D012016:Reference Values
D001993:Bronchodilator Agents