Terbutaline aerosol given through pear spacer in acute severe asthma.
D000336:Aerosols; D001249:Asthma / Q000188:drug therapy*; D002648:Child; D006801:Humans; D013726:Terbutaline / Q000008:administration & dosage*
D000336:Aerosols; D013726:Terbutaline