1. From the Department of Medicine, King Faisal Specialist Hospital and Research Centre, Riyadh, Saudi Arabia
2. Correspondence: Dr. Suad Mohamed Al-Mukhaini · Sur Hospital Medicine, South Sharqia, PO Box 955 Sur, 411, Oman · T: 968 25561100, F: 968 25561561 · almukhainism@gmail.com
3. From the Department of Kidney and Pancreas Transplantation, King Faisal Specialist Hospital and Research Centre, Riyadh, Saudi Arabia
4. From the Department of Cell Biology, King Faisal Specialist Hospital and Research Centre, Riyadh, Saudi Arabia
5. From the Department of Infection Control and Environmental Health, King Faisal Specialist Hospital and Research Centre, Riyadh, Saudi Arabia
6. From the Department of Quality, King Khalid University Hospital, Riyadh, Saudi Arabia