[1] Univ Tubingen, Med Univ Clin, Tubingen, Germany
[2] Univ Tubingen, Tubingen, Germany
[3] Heidelberg Univ, Dept Internal Med, Heidelberg, Germany
[4] Med Univ Clin, Mainz, Germany
[5] Tech Univ Munich, Dept Internal Med 2, D-80290 Munich, Germany
[6] Univ Halle Wittenberg, Dept Internal Med, D-06108 Halle, Germany
[7] Univ Duisburg Essen, Dept Gastroenterol & Hepatol, Essen, Germany
[8] Univ Hosp Hamburg Eppendorf, Hamburg, Germany
[9] Univ Genoa, Dept Internal Med, Gastroenterol Unit, I-16126 Genoa, Italy
[10] Ist Oncol Veneto IRCCS, Padua, Italy
[11] Azienda Univ Padova, Hepatobiliary Surg & Liver Transplant Unit, Padua, Italy
[12] Univ Bologna, Bologna, Italy
[13] Humanitas Canc Ctr, Dept Oncol, Rozzano, Italy
[14] UO Oncol Osped Cotugno Napoli, Naples, Italy
[15] 4SC AG, Planegg Martinsried, Germany
[16] 4SC AG, Martinsried, Germany