1. Division of Cardiac Surgery, Cardiovascular DepartmentKing Faisal Specialist Hospital and Research CenterJeddah Saudi Arabia
2. Cardiac Surgery Intensive Care Unit (CSICU) Cardiovascular DepartmentKing Faisal Specialist Hospital and Research CenterJeddah Saudi Arabia
3. Intensive Care UnitBasildon and Thurrock University HospitalEssex United Kingdom
4. Cardiothoracic Surgery DepartmentTanta UniversityTanta Egypt