1. Nursing Administration Department, Faculty of Nursing, Tanta University, Tanta, Egypt
2. Faculty of Nursing, New Mansoura University, New Mansoura, Egypt
3. Nursing Administration Department, Faculty of Nursing, Assiut University, Assiut, Egypt
4. Nursing Administration Department, Faculty of Nursing, Cairo University, Cairo, Egypt
5. Nursing Education Department, Faculty of Nursing, Minia University, Minya, Egypt
6. College of Applied Medical Sciences, King Faisal University, Al Hofuf, Saudi Arabia
7. College of Taraba, Taif University, P.O. Box 11099, Taif, Saudi Arabia