Trauma & Vascular Surgery, Clinical Research, Hamad General Hospital, Hamad Medical Corporation (HMC), P.O Box 3050, Doha, Qatar. aymanco65@yahoo.com. Clinical Medicine, Weill Cornell Medical College, Doha, Qatar. aymanco65@yahoo.com. Department of Surgery, Trauma Surgery, Hamad General Hospital, HMC, Doha, Qatar. Trauma Surgery, Clinical Pharmacy, Hamad General Hospital, HMC, Doha, Qatar. Trauma & Vascular Surgery, Clinical Research, Hamad General Hospital, Hamad Medical Corporation (HMC), P.O Box 3050, Doha, Qatar. Hamad Medical Corporation Ambulance Service, Medical City, HMC, Doha, Qatar. Weill Cornell Medicine-Qatar, Doha, Qatar. School of Health and Social Work, Paramedic Division, University of Hertfordshire, Hatfield, UK. Faculty of Health and Life Sciences, Northumbria University, Newcastle upon Tyne, UK.