1. Nursing Department, Prince Sultan Military College of Health Sciences , Dhahran, Saudi Arabia
2. Psychiatric Department, Faculty of Medicine, University of Khartoum , Khartoum, Sudan
3. Department of Clinical Laboratory Sciences, Prince Sultan Military College of Health Sciences , Dhahran, Saudi Arabia
4. Department of Medical Laboratory, King Fahad Military Medical Complex , Dhahran, Saudi Arabia
5. Vice Deanship of Postgraduate Studies and Research, Prince Sultan Military College of Health Sciences , Dhahran, Saudi Arabia