[1] AUSL Bologna, Bentivoglio Hosp, Internal Med, I-40010 Bentivoglio, Italy
[2] Univ Bologna, Dept Med & Surg Sci, I-40138 Bologna, Italy
[3] Univ Aquila, San Salvatore Hosp, Dept Life Hlth & Environm Sci & Internal Med, Nephrol Unit,ASL Avezzano Sulmona Laquila, I-67100 Laquila, Italy
[4] Univ G dAnnunzio, Inst Clin Med, Dept Med & Aging Sci, I-66100 Chieti, Italy
[5] Villa Serena Hosp, I-65030 Citta S Angelo, Italy
[6] Azienda Osped Univ Bologna, IRCCS, Intervent Diagnost & Therapeut Ultrasound Unit, I-40138 Bologna, Italy
[7] Univ G dAnnunzio, Ctr Adv Studies & Technol, Dept Med & Aging Sci, I-66100 Chieti, Italy
[8] IRCCS Azienda Osped Univ Bologna, Div Internal Med Hepatobiliary & Immunoallerg Dis, I-40138 Bologna, Italy