1. Department of Occupational Health, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran
2. Department of Chemistry, Imam Hossein University, Tehran, Iran
3. Department of Textile Engineering, Amirkabir University of Technology, Tehran, Iran
4. Department of Mathematics, Statistics and Computer Science, University of Tehran, Tehran, Iran
5. Department of Textile Chemistry Engineering, University of Guilan, Rasht, Iran
6. Department of Public Health and Preventive Medicine, University of Toledo College of Medicine, Toledo, OH, USA