1. Resident of Preventive and Community Medicine, Information System Department, University Hospital of Sahloul, Sousse Tunisia
2. Director of the Regional Directorate of Basic Healthcare, Sousse, Tunisia
3. Associate Professor of Community and Preventive Medicine, Hospital Hygiene Service, Kairouan University Hospital, Tunisia
4. Professor of Preventive and Community Medicine, Information System Department, University Hospital of Sahloul, Tunisia