1. Department of Cardiothoracic Surgery, Faculty of Medicine, The University of Jordan, Amman, Jordan.
2. Department of Orthopaedic Surgery, Faculty of Medicine, The University of Jordan, Amman, Jordan.
3. Department of General Surgery, Faculty of Medicine, The University of Jordan, Amman, Jordan.
4. Faculty of Veterinary Medicine, Jordan University of Science and Technology, Irbid, Jordan.
5. Department of Anesthesia and Critical Care, Faculty of Medicine, The University of Jordan, Amman, Jordan.