1. Unit of Gynecology and Obstetrics, Department of Human Pathology in Adulthood and Childhood “G. Barresi,” University of Messina, Messina, Italy
2. Department of Biomedical Sciences, Dentistry and Morphological and Functional Imaging, University of Messina, Messina, Italy
3. Department of Gynecology and Obstetrics, Münster University Hospital, Münster, Germany