Document Type : Original Article
Authors
1 Cardiology department - faculty of Medicine - Zagazig university
2 Cardiology department, Faculty of medicine, Zagazig university, Zagazig, Egypt
3 cardiology department,zagazig university
4 Cardiology
5 lecturer of cardiology department ,zagazig university
6 Department of Cardiology, faculty of Medicine, Zagazig university
Abstract
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