1. Faculty of Medicine and Pharmaceutical Science; University of Douala; Douala Cameroon
2. Department of Gynecology and Obstetrics; Douala General Hospital; Douala Cameroon
3. Department of Internal Medicine; Douala General Hospital; Douala Cameroon
4. Faculty of Health Sciences; University of Buéa; Buéa Cameroon
5. Faculty of Medicine and Biomedical Science; University of Yaoundé I; Yaoundé Cameroon
6. Department of Gynecology and Obstetrics; Gynecology-Obstetric and Pediatric Hospital; Douala Cameroon