Your metered-dose inhaler will be changing: here are the facts. National Asthma Education and Prevention Program.
D000335:Aerosol Propellants; D018927:Anti-Asthmatic Agents / Q000008:administration & dosage*; D001249:Asthma / Q000188:drug therapy; D017402:Chlorofluorocarbons; D004337:Drug Carriers; D016503:Drug Delivery Systems; D006801:Humans; D009330:Nebulizers and Vaporizers; D010353:Patient Education as Topic
D000335:Aerosol Propellants; D018927:Anti-Asthmatic Agents; D017402:Chlorofluorocarbons; D004337:Drug Carriers