1. Biosciences & Medical Embryology Section, Department of Medicine and Surgery, University of Perugia, Medical School -Piazza Lucio Severi 1, Edificio B - IV piano; Sant’Andrea delle Fratte, Perugia, 06132, Italy
2. Biosciences & Medical Embryology Section, Department of Medicine and Surgery, University of Perugia, Perugia, Italy
3. School of Biosciences and Veterinary Medicine, University of Camerino, Macerata, Italy
4. Gastroenterology, Hepatology & Digestive Endoscopy Section, Department of Medicine and Surgery, University of Perugia, Perugia, Italy
5. Gastroenterology & Hepatology Unit, Santa Maria della Misericordia Hospital, Perugia, Italy