A Wright peak flow meter in practice.
D000293:Adolescent; D000328:Adult; D000368:Aged; D001249:Asthma / Q000188:drug therapy; D002648:Child; D002675:Child, Preschool; D004739:England; D005194:Family Practice; D005540:Forced Expiratory Flow Rates / Q000295:instrumentation*; D006801:Humans; D008875:Middle Aged; D010366:Peak Expiratory Flow Rate / Q000295:instrumentation*; D012120:Respiration Disorders / Q000175:diagnosis; D012212:Rheology