1. Department of Anesthesia, School of Paramedical Sciences, Arak University of Medical Sciences
2. Department of Nursing, Arak School of Nursing, Arak University of Medical Sciences
3. Department of Biostatistics, School of Medicine, Arak University of Medical Sciences
4. Department of Nursing, Shazand School of Nursing, Arak University of Medical Sciences
5. Department of Anesthesiology and Critical Care, Arak University of Medical Sciences, Arak, Iran