1. Cardiology department, Hedi Chaker Hospital, Sfax, Tunisia
2. Research Unit UR17ES37, University of Medicine, Sfax University, Tunisia
3. Cardiology department, Farhat Hached Hospital, Sousse, Tunisia
4. Research Laboratory LR14ES05, University of Medicine, Sousse University, Tunisia
5. Preventive department, Hedi Chaker Hospital, Sfax, Tunisia