1. Unit of Gynecology and Obstetric, Department of Biomedical and Dental Sciences and Morpho Functional Imaging, University Hospital “G. Martino” of Messina, 98100 Messina, Italy
2. Unit of Gynecology and Obstetric, Department of Human Pathology of Adults and Developmental Age, University Hospital “G. Martino” of Messina, 98100 Messina, Italy
3. Department of General Surgery and Medical Surgical Specialties, University of Catania, 95125 Catania, Italy