1Department of Mother and Child, Faculty of Health Sciences of Cotonou, University of Abomey-Calavi, Benin
2Department of Mother and Child, Faculty of Medicine, University of Parakou, Benin
*Corresponding Author:
Obossou AAA, Department of Mother and Child, Faculty of Medicine, University of Parakou, Benin, Tel: (229)-95853279/97067852 Email: