1. Student Research Committee Babol University of Medical Sciences Babol Mazandaran Iran
2. Social Determinants of Health Research Center, Health Research Institute Babol University of Medical Sciences Babol Mazandaran Iran
3. Department of Biostatistics and Epidemiology, School of Public Health Babol University of Medical Sciences Babol Mazandaran Iran
4. Department of Internal Medicine, Ayatollah Rohani Hospital Babol University of Medical Sciences Babol Iran