· Mental Health and Related factors in students of Tehran universities of Medical Sciences, XVIIth IEA World Congress of Epidemiology 2005:Abstracts

· Road traffic related mortality in Iran: A descriptive study, XVIth IEA World Congress of Epidemiology-Montréal 2002

· AIDS knowledge and attitudes in Iran: results from a population-based study in Tehran, 15th International AIDS Conference,11-16 July. 2004, Bangkok, Thailand

· Quality of life and mental health in young Iranian population, 8th Annual conference of the international society for quality of life research, 2001 Canada Vancouver