Document Type : Original Article
Authors
1 cardiothoracic surgery department, faculty of medicine, Mansoura university, Mansoura city, Egypt
2 cardiothoracic surgery department, Faculty of Medicine,Mansoura university, Egypt.
3 Cardiothoracic Surgery Department, facuty of medicine, Mansoura University, Egypt
4 cardiothoracic surgery department, faculty of medicine, Mansoura university, Mansoura city,Egypt.
5 Cardiothoracic Surgery Department, faculty of medicineMansoura University, Egypt
Abstract
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