1. Syrian Expatriate Medical Association (SEMA), SEMA-US, Charlottesville, VA, USA; Department of Anaesthesiology, University of Virginia, Charlottesville, VA, USA; Department of Anaesthesiology, King Fahad Medical City, Riyadh, Saudi Arabia; Outcomes Research Consortium, Cleveland, OH, USA
2. Syrian Expatriate Medical Association (SEMA), SEMA-US, Cincinnati, OH, USA
3. Syrian Expatriate Medical Association, Idlib, Syria
4. Syrian Expatriate Medical Association (SEMA), SEMA-Turkey, Gaziantep
5. Charlottesville, VA, USA
6. Department of Anaesthesiology, Stanford University, Menlo Park, CA, USA
7. Syrian Expatriate Medical Association (SEMA), SEMA-Turkey, Gaziantep, Turkey; Section Head of Polyclinics, Department of Family Medicine and Polyclinics, King Saud University, Riyadh, Saudi Arabia
8. Department of Paediatrics, King Saud University, Riyadh, Saudi Arabia