الفهرس 
Chronic Obstructive Pulmonary DiseaseOnly 14 pages are availabe for public view
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Abstract
This study was done on 300 persons aim to evaluate the
different spirometric measure measurements In diagnosis
COPD clinical examination and spirometry was done to
every subjects in the study to diagnosis and staging of
COPD .The study conclude that FEF25–75 is more
sensitive in early detection of COPD and can be used in
staging of Copd.