Which blow is best? A study of peak flow meters.
D000293:Adolescent; D001827:Body Height; D002648:Child; D002675:Child, Preschool; D005260:Female; D005540:Forced Expiratory Flow Rates / Q000295:instrumentation*; D006801:Humans; D008168:Lung / Q000502:physiology; D008297:Male; D010366:Peak Expiratory Flow Rate / Q000295:instrumentation*