The maximal midexpiratory flow time.
D000293:Adolescent; D000328:Adult; D000368:Aged; D001249:Asthma / Q000503:physiopathology; D001991:Bronchitis / Q000503:physiopathology; D002908:Chronic Disease; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D011656:Pulmonary Emphysema / Q000503:physiopathology; D011658:Pulmonary Fibrosis / Q000503:physiopathology; D012119:Respiration; D012140:Respiratory Tract Diseases / Q000503:physiopathology*; D013147:Spirometry; D013997:Time Factors