Watch video Systemic pathology 16 : respiratory system 2 ( chronic obstructive pulmonary disease) DR.SAMEH GHAZY online without registration, duration 45 minute 23 second in high hd quality. This video was added by user Sameh Ghazy 25 October 2020, don't forget to share it with your friends and acquaintances, it has been viewed on our site 99 thousand once and liked it 2 thousand people.