1. School of Public Health; Free University of Brussels; Brussels Belgium
2. Clinical and Epidemiological Research Laboratory (LCER); Doctoral School of Sciences and Technology; Lebanese University; Beirut Lebanon
3. Clinical and Epidemiological Research Laboratory (LCER); Faculty of Pharmacy; Lebanese University; Beirut Lebanon
4. Epidemiological Surveillance Unit; Ministry of Public Health; Beirut Lebanon
5. Research Centre Social Approaches to Health; School of Public Health; Free University of Brussels; Brussels Belgium