title: Maximal expiratory flow rates and "closing volume" in asymptomatic healthy smokers.
mesh_terms: D000328:Adult; D000402:Airway Obstruction / Q000175:diagnosis; D006801:Humans; D008297:Male; D010993:Plethysmography, Whole Body; D012119:Respiration; D012143:Respiratory Physiological Phenomena; D012137:Respiratory System / Q000503:physiopathology; D012907:Smoking; D013147:Spirometry; D014797:Vital Capacity