[1] IRCCS, Ctr Diag & Treatment Digest Dis, Gastroenterol Dept, CEMAD,Fdn Policlin Gemelli, I-00168 Rome, Italy
[2] G DAnnunzio Univ Chieti Pescara, Dept Med & Ageing Sci, I-66100 Chieti, Italy
[3] G DAnnunzio Univ Chieti Pescara, Ctr Adv Studies & Technol CAST, I-66100 Chieti, Italy
[4] Catholic Univ, Sch Med, Dept Translat Med & Surg, I-00168 Rome, Italy