1. Research Laboratory: “Heart Failure” (LR12SP09), Farhat Hached University Hospital, Sousse, Tunisia
2. Department of Neurophysiology, Sahloul University Hospital of Sousse, Sousse, Tunisia
3. Research Laboratory “Medical Imaging Technologies” (LR 12ES06), Faculty of Medicine of Monastir, University of Monastir, Monastir, Tunisia
4. Laboratory of Physiology. Faculty of Medicine of Sousse, University of Sousse, Sousse, Tunisia