1. Department of Health and Social Medicine, Urmia University of Medical Sciences, School of Medicine, Urmia, Iran.
2. Department of Health Education, Tehran University of Medical Sciences, School of Public Health, Tehran, Iran.
3. Department of Health Education, Tarbiat Modares University, School of Medical Sciences, Tehran, Iran.
4. Department of Biostatistics, Tarbiat Modares University, School of Medical Sciences, Tehran, Iran.
5. Department of Nutrition and Biochemistry, Urmia University of Medical Sciences, School of Medicine, Urmia, Iran.