The peak flow whistle: a simple device for monitoring peak flow in children.
D001249:Asthma / Q000503:physiopathology; D002648:Child; D002675:Child, Preschool; D005260:Female; D005540:Forced Expiratory Flow Rates / Q000295:instrumentation*; D006801:Humans; D008168:Lung / Q000503:physiopathology; D008297:Male; D010366:Peak Expiratory Flow Rate / Q000295:instrumentation*