1. Thoracic Surgery Division, Department of Surgery, King Fahad Hospital of The University, College of Medicine, Imam Abdulrahman Bin Faisal University, Dammam, Eastern Region, Saudi Arabia
2. Cardiac Surgery Division, Department of Surgery, King Fahad Hospital of The University, College of Medicine, Imam Abdulrahman Bin Faisal University, Dammam, Eastern Region, Saudi Arabia
3. Department of Pathology, King Fahad Hospital of The University, College of Medicine, Imam Abdulrahman Bin Faisal University, Dammam, Eastern Region, Saudi Arabia