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.