الفهرس 
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Abstract
The purpose of this study is to evaluate the role of the ultrasound examination before and after pulmonary rehabilitation program in diaghragmatic evaluation among stable COPD patients.
This study was conducted at Zagazig University Hospitals Chest Department in the period from February 2019 to November 2019 of University Hospitals Zagazig Chest Department.
This study was conducted on 90 healthy patients with COPD of either sex with age ranges from 45-75 years.