Ph.D. Thesis of doctor / Hussien Khairy Abdel-Aziz El-Khayat, the Assistant Lecturer of Cardio-Thoracic Surgery
Faculty of Medicine
Assiut University
Ph.D. Thesis of doctor / Hussien Khairy Abdel-Aziz El-Khayat, the Assistant Lecturer of Cardio-Thoracic Surgery
Assiut University