1. Department of Biology; University Federico II of Naples; Naples Italy
2. National Institute of Biostructures and Biosystems (INBB); Rome Italy
3. Department of Mental and Physical Health and Preventive Medicine, Section of Human Anatomy; Second University of Naples; Naples Italy
4. Division of Gastroenterology; Hospital “San Filippo Neri”; Rome Italy
5. V UOC; P.O. Cotugno AORN Ospedali dei Colli; Naples Italy
6. Department of Medicine and Health Sciences; University of Molise; Campobasso Italy