1. Department of Environmental Health EngineeringFaculty of Health and Health Sciences Research CenterStudent Research CommitteeMazandaran University of Medical Sciences Sari Iran
2. Ceit, Universidad de Navarra San Sebastian Spain
3. Tecnun San Sebastian Spain
4. IKERBASQUEBasque Foundation for Science Bilbao Spain
5. Department of Environmental Health EngineeringHealth Sciences Research CenterFaculty of HealthMazandaran University of Medical Sciences Sari Iran
6. Health Sciences Research CenterAddiction InstituteMazandaran University of Medical Science Sari Iran
7. Department of BiostatisticsSchool of Public HealthMazandaran University of Medical Sciences Sari Iran