1. Non‐Communicable Diseases Research Center Shiraz University of Medical Sciences Shiraz Iran
2. Department of Community Medicine Shiraz University of Medical Science Shiraz Iran
3. Student Research Committee Shiraz University of Medical Sciences Shiraz Iran
4. Department of Epidemiology and Biostatistics, School of Health Gonabad University of Medical Sciences Gonabad Iran
5. Department of Pediatric Dentistry, School of Dentistry Tehran University of Medical Sciences Tehran Iran