Seid-Kazem Razavi-Ratki
Shariati hospital. Tehran University of Medical Sciences, Tehran, Iran
Marzieh Nojomi
Professor of community medicine. Department of Community Medicine, School of Medicine. Tehran University of Medical Sciences, Tehran, Iran
Fatemeh Alborzi
Department of Community Medicine. School of Medicine. Tehran University of Medical Sciences, Tehran, Iran
Nasim Namiranian
Student of community medicine. Department of Community Medicine. School of Medicine. Tehran University of Medical Sciences, Tehran, Iran
Ronald E Myers
Division of Population Science. Department of Medical Oncology. Thomas Jefferson University, Philadelphia, PA
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