1. Department of Pulmonology and Internal Medicine, Tobacco Control Research Center, Iranian Anti-Tobacco Association, Shahid Beheshti University of Medical Sciences, Tehran, Iran
2. Department of Injury Epidemiology, Safety Promotions and Injury Prevention Research Center of Shahid Beheshti University of Medical Sciences, Tehran, Iran
3. Department of Biostatistics, Proteomics Research Center, Faculty of Paramedical Sciences, Shahid Beheshti University of Medical Sciences, Tehran, Iran
4. Tobacco Control Research Center, Iranian Anti-Tobacco Association, Shahid Beheshti University of Medical Sciences, Tehran, Iran