title: Variability in the maximal expiratory flow volume curve in asymptomatic smokers and in nonsmokers.
mesh_terms: D000293:Adolescent; D000328:Adult; D000367:Age Factors; D000368:Aged; D000402:Airway Obstruction / Q000175:diagnosis / Q000503:physiopathology; D001827:Body Height; D005260:Female; D006801:Humans; D008168:Lung / Q000502:physiology* / Q000503:physiopathology; D008297:Male; D008875:Middle Aged; D010993:Plethysmography, Whole Body; D012119:Respiration; D012737:Sex Factors; D012907:Smoking / Q000503:physiopathology*; D013147:Spirometry; D013223:Statistics as Topic; D014797:Vital Capacity