1. Department of Anaesthesia, Surgical Intensive Care Trauma Center, Faculty of Medicine, Cairo University, Cairo, Egypt
2. Department of Physiology, Faculty of Medicine, Cairo University, Cairo, Egypt
3. Department of Anaesthesia, Pain Management and Perioperative Medicine’s, Faculty of Medicine, Dalhousie University, Halifax, Canada
4. Department of Pharmacology, Faculty of Medicine, Dalhousie University, Halifax, Canada
5. Department of Immunology, Faculty of Medicine, Dalhousie University, Halifax, Canada