1. Cancer Research Center Cancer Research Institute Tehran University of Medical Sciences Tehran Iran
2. Biostatistics Group Health Science Department University of Leicester Leicester UK
3. Communicable Disease Office Deputy of Health Qazvin University of Medical Sciences Qazvin Iran
4. Shahid Bolandian Health Center Qazvin University of Medical Sciences Qazvin Iran
5. Obesity Research Center Research Institute of Endocrine SciencesShahid Beheshti University of Medical Sciences Tehran Iran
6. Student Research Center Qazvin University of Medical Sciences Qazvin Iran
7. Department of Internal Medicine School of Medicine Qazvin University of Medical Sciences Qazvin Iran