Discriminating Measures and Normal Values for Expiratory Obstruction
Keywords: بیماری های دستگاه تنفس انسدادی; demographic analysis; FEV3/FVC; forced expiratory flow rates; obstructive airways disease; reference values; smoking; spirometryATS, American Thoracic Society; FEF25–75, forced expiratory flow, midexpiratory phase; FEF75, instantaneous flow after 75% of t