PO-1235 Feasibility and early clinical experience of online adaptive MR-guided radiotherapy of liver tumors. (August 2021) - Rogowski, P.; von Bestenbostel, R.; Walter, F.; Straub, K.; Nierer, L.; Landry, G.; Reiner, M.; Kurz, C.; Auernhammer, C.J.; Belka, C.; Niyazi, M.; Corradini, S.