Evaluation of the peak expiratory flow rate.
D000293:Adolescent; D001249:Asthma / Q000503:physiopathology*; D002648:Child; D002675:Child, Preschool; D006801:Humans; D008168:Lung / Q000503:physiopathology*; D012119:Respiration; D013147:Spirometry; D013223:Statistics as Topic