Yan-fei GUO ; Tie-ying SUN ; Francois HERRMANN ; Jean-Paul JANSSENS
Chinese Medical Journal 2005;118(22):1921-1924
Aged ; Aged, 80 and over ; Airway Resistance ; Forced Expiratory Volume ; Humans ; Oscillometry ; Prospective Studies ; Pulmonary Disease, Chronic Obstructive ; diagnosis ; physiopathology ; Respiratory Function Tests ; methods ; Sensitivity and Specificity