1. Department of Pediatric, Gynecological, Microbiological and Biomedical Sciences; University Hospital “G. Martino”; Messina Italy
2. Department of Obstetrics and Gynecology; University Hospital “P. Giaccone”; Palermo Italy
3. Department of Clinical and Experimental Medicine Human Pathology; University Hospital “G. Martino”; Messina Italy
4. Department of Obstetrics and Gynecology; II University; Naples Italy