Modifying delivery technique of Fenoterol from a metered dose inhaler.
D004983:Ethanolamines / Q000008:administration & dosage*; D005280:Fenoterol / Q000008:administration & dosage*; D006801:Humans; D012138:Respiratory Therapy / Q000295:instrumentation*
D004983:Ethanolamines; D005280:Fenoterol