Silvia F. Shalaby; Assistant Professor of Public Health, Community and Preventive Medicine at Faculty of Medicine, Cairo University. Silvia is a graduate of Faculty of Medicine, Cairo University and has worked as an internal medicine resident at Cairo University Hospitals for two years. Then shifted her career to become a demonstrator of Public Health and studied the Master Degree in 2008 followed by the PHD in 2011. Silvia is especially interested in behavioral research and health services administration. Since the beginning of her research career she shared in studies related to smoking and tobacco control among youth.