1. School of Health Sciences, University of Salford, Manchester, UK
2. Nursing Department, Prince Sultan Military College of Health Sciences, Dhahran, Saudi Arabia
3. Vice Deanship of Postgraduate Studies and Research, Prince Sultan Military College of Health Sciences, Dhahran, Saudi Arabia
4. Department of Nursing, College of Applied Medical Sciences, Taif University, Taif, Saudi Arabia
5. Adult Hematology Unit, Internal Medicine Department, King Fahad Military Medical Complex, Dhahran, Saudi Arabia