1 Department of Obstetrics and Gynecology, CHLN - Hospital Universitário de Santa Maria, Lisbon, Portugal. Electronic address: [email protected].
2 Department of Obstetrics and Gynecology, CHLN - Hospital Universitário de Santa Maria, Lisbon, Portugal.
3 Department of Obstetrics and Gynecology, CHLN - Hospital Universitário de Santa Maria, Lisbon, Portugal; Faculdade de Medicina da Universidade de Lisboa, CAM - Centro Académico de Medicina de Lisboa, Av. Prof. Egas Moniz, 1649-035 Lisboa, Portugal.