Asthma, inhalers, and technique.
McNeill
A
A
D001249:Asthma / Q000188:drug therapy*; D005617:Chlorofluorocarbons, Methane / Q000009:adverse effects; D006801:Humans; D009330:Nebulizers and Vaporizers
D005617:Chlorofluorocarbons, Methane