1. Department of Community Health Sciences, College of Applied Medical Sciences, King Saud University, Riyadh, Saudi Arabia
2. Department of Central Military Laboratory & Blood Bank, Prince Sultan Military Medical City, Riyadh, Saudi Arabia
3. Department of Clinical Laboratory Sciences, College of Applied Medical Sciences, King Saud University, Riyadh, Saudi Arabia
4. Deputyship of Research Chairs, Deanship of Scientific Research, King Saud University, Riyadh, Saudi Arabia
5. Central Research Laboratory, King Saud University, Riyadh, Saudi Arabia.