The Wright peak flow meter. Its reliability and practical use.
D000293:Adolescent; D000328:Adult; D000397:Air Pollution; D001827:Body Height; D002648:Child; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D009790:Occupations; D012123:Pulmonary Ventilation / Q000295:instrumentation*; D012572:School Health Services; D013147:Spirometry; D014797:Vital Capacity