1. Department of Environmental Health Engineering
2. School of Public Health
3. Tehran University of Medical Sciences
4. Tehran
5. Iran
6. Iran University of Medical Sciences
7. Health Research Center
8. Baqiyatallah University of Medical Sciences
9. Tehran 1471613151
10. I. R. Iran
11. School of Public Health, Ahvaz
12. Jundishapur University of Medical Sciences
13. Ahvaz