Prior smoking as a determinant of the distribution of pulmonary ventilation.
D000403:Airway Resistance; D001249:Asthma / Q000503:physiopathology; D003032:Coal Mining; D006801:Humans; D008297:Male; D011009:Pneumoconiosis / Q000503:physiopathology; D012119:Respiration; D012129:Respiratory Function Tests; D012907:Smoking / Q000503:physiopathology*; D013997:Time Factors; D014692:Ventilation-Perfusion Ratio