1. GREMAN UMR 7347, Université de Tours, CNRS, INSA Centre Val de Loire, 10 rue Thalès de Milet, 37071 Tours Cedex 2, France
2. UMR 1253, iBrain, Université de Tours, Inserm, Tours, France
3. Department of Obstetrics, Gynecology and Fetal Medicine, University Hospital Center of Tours, Tours, France
4. Vermon SA, 180 rue du General Renault, BP 93813, 37038 TOURS Cedex 1, France