1. Department of Experimental, Diagnostic, and Specialty Medicine; S.Orsola-Malpighi Hospital; University of Bologna; Bologna Italy
2. Department of Psychology; University of Bologna; Bologna Italy
3. Department of Biomedical, Metabolic and Neural Sciences; University of Modena and Reggio Emilia; Modena Italy
4. Department of Gastroenterology; IBD Unit; Policlinico Hospital; Modena Italy
5. Department of Clinical Medicine; S.Orsola-Malpighi Hospital; University of Bologna; Bologna Italy