title: Spacers in childhood asthma--is there one for all occasions?
authors.forename: H
authors.initials: H
authors.lastname: Levison
mesh_terms: D000280:Administration, Inhalation; D001249:Asthma / Q000188:drug therapy*; D001993:Bronchodilator Agents / Q000008:administration & dosage; D002648:Child; D002675:Child, Preschool; D005260:Female; D006801:Humans; D009330:Nebulizers and Vaporizers
chemical_list: D001993:Bronchodilator Agents