Document Type : Original Article
Authors
1 Sharkia governorate . Zagazig city
2 cardiology department, faculty of medicine, Zagazig university -Egypt
3 cardiology department, faculty of medicine, Zagazig university, Egypt
4 Resident of Cardiology, Assuit Police Hospitl
5 cardiology department, faculty of medicine, zagazig university, al sharkya
Abstract
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