1. Social Determinants of Health Research Center, School of Allied Medical Sciences, Lorestan University of Medical Sciences, Khorramabad, Iran
2. Department of Health Information Management, School of Health Management and Information Sciences, Iran University of Medical Sciences, Tehran, Iran
3. Department of Epidemiology, School of Health, Shahid Beheshti University of Medical Sciences, Tehran, Iran
4. Elderly Care Research Center, School of Medicine, Shahed University, Tehran, Iran