1. Department of Neurology, University of Parakou, Parakou, Benin
2. Clinic of Neurology, University Teaching Hospital of Parakou, Parakou, Benin
3. Department of Gynecology and Obstetrics, University of Parakou, Parakou, Benin
4. Department of Neurology, University of Abomey-Calavi, Cotonou, Benin
5. Department of Gynecology and Obstetrics, University of Abomey-Calavi, Cotonou, Benin