1. DACTIM-MIS, Laboratory of Mathematics and Applications (LMA), University of Poitiers, CHU de Poitiers, Poitiers, France
2. CHU Amiens Picardie, University of Picardie Jules Verne (UPJV), Amiens, France
3. Laboratory of Mathematics and Applications (LMA), University of Poitiers, Poitiers, France
4. Centre de Recherche Clinique, Grand Hôpital de l’Est Francilien (GHEF), Meaux, France