1. Student Research Committee, Shiraz University of Medical Sciences, Shiraz, Iran
2. Behbahan Faculty of Medical Sciences, Behbahan, Iran
3. Health Human Recourses Research Center, School of Health Management and Information Sciences, Shiraz University of Medical Science, Shiraz, Iran
4. Department of Gerontology, Faculty of Health, Shiraz University of Medical Sciences, Shiraz, Iran
5. College of Health and Human Sciences, Faculty of Health, Charles Darwin University, Alice Springs campus, NT, Australia