An unsuccessful attempt to instrumentally condition peak expiratory flow rates in asthmatic children.
D001249:Asthma / Q000628:therapy*; D002000:Bronchospirometry; D002648:Child; D003216:Conditioning, Operant; D005246:Feedback; D005540:Forced Expiratory Flow Rates; D006801:Humans; D008297:Male; D010366:Peak Expiratory Flow Rate; D005082:Physical Exertion; D012054:Reinforcement, Psychology