1. Institute of Food Sciences-CNR; Lab. Immuno-Morphology; Avellino Italy
2. Department of Mental and Physical Health and Preventive Medicine; Section of Human Anatomy, Second University of Naples; Naples Italy
3. Department of Gastroenterology; San G. Moscati Hospital; Avellino Italy
4. Department of Medicine and Health Sciences; University of Molise; Molise Italy
5. Department of Intensive Care, Erasme Hospital; Université Libre de Bruxelles; Brussels Belgium
6. Division of Gastroenterology; Santa Rita Hospital; Atripalda (Av) Italy