1. From the Center for Research and Training in Skin Diseases and Leprosy, Tehran University of Medical Sciences, Tehran, Iran
2. Department of Research Methodology and Data Analysis, Tehran University of Medical Sciences, Tehran, Iran
3. Center for Air Pollution Research (CAPR), Institute for Environmental Research, Tehran University of Medical Sciences, Tehran, Iran
4. Dermatology Department, Faculty of Medicine Tehran Medical Sciences, Islamic Azad University, Tehran, Iran