1. Adjunct Professor, Department of Public Health; University of Helsinki; National Public Health Institute; Helsinki Finland
2. Centers for Disease Control and Prevention; National Center for Chronic Disease Prevention and Health Promotion; Atlanta GA USA
3. Professor Department of Public Health; University of Helsinki; National Public Health Institute Helsinki; Finland
4. Danube University of Krems Krems, Austria; King Abdulaziz University; Jeddah Saudi Arabia