1. Department of Obstetrics and Gynecology; University Hospital of Amiens, CHU Amiens-Picardie; Amiens France
2. Inserm UMR 1105, GRAMFC (Groupe de Recherches sur l'Analyse Multimodale de la Fonction Cérébrale); Picardie Jules Verne University; Amiens France
3. Department of Anaesthesiology and Critical Care Medicine; University Hospital of Amiens, CHU Amiens-Picardie; Amiens France