Document Type : Original Article
Authors
1 Lecturer of cardiothoracic surgery- Faculty of medicine -Benha University
2 Professor of cardio thoracic surgery department- Faculty of medicine- Benha University
3 Demonstrator of cardio thoracic surgery department-Faculty of medicine - Benha university
4 Lecturer of cardio thoracic surgery- Faculty of medicine - Benha University
5 Lecturer of cardio thoracic surgery- Faculty of medicine- Benha University
Abstract
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