[Preliminary discussion on the clinical implication of the slope of phase III].
D000328:Adult; D003011:Closing Volume; D006801:Humans; D008173:Lung Diseases, Obstructive / Q000503:physiopathology*; D008176:Lung Volume Measurements; D008297:Male; D008433:Mathematics; D008875:Middle Aged; D012907:Smoking; D014797:Vital Capacity