1. Gynecology Division; Department of Obstetrics and Gynecology; University Hospitals of Geneva; Geneva Switzerland
2. Department of Biomedical Sciences; University of Dschang; Dschang District Hospital; Dschang Cameroon
3. Faculty of Medicine and Biomedical Sciences; Centre Hospitalier Universitaire (CHUY); Yaoundé Cameroon
4. Geneva Foundation for Medical Education and Research; Geneva Switzerland