1. Department of Anesthesiology and Critical CareCentre Hospitalier Universitaire de Caen Caen France
2. Department of Obstetrics and GynecologyHôpital Jeanne de Flandre, Centre Hospitalier Universitaire de Lille Lille France
3. Department of NeuroradiologyHôpital Roger Salengro, Centre Hospitalier Universitaire de Lille and Lille University Lille France
4. Department of Neurology and Neurovascular MedicineHôpital Roger Salengro, Centre Hospitalier Universitaire de Lille Lille France
5. Department of Anesthesiology and Critical CareHôpital Jeanne de Flandre, Centre Hospitalier Universitaire de Lille Lille France