PROGNOSTIC FACTORS (PFs) IN PRIMARY MEDIASTINAL LARGE B‐CELL LYMPHOMA (PMLBCL) TREATED WITH RITUXIMAB‐CHOP (RCHOP) ± RADIOTHERAPY (RT). (12th June 2019) - Vassilakopoulos, T.P.; Papageorgiou, S.G.; Michail, M.; Angelopoulou, M.K.; Kourti, G.; Kalpadakis, C.; Kotsopoulou, M.; Leonidopoulou, T.; Konstantinidou, P.; Kotsianidis, I.; Boutsis, D.; Michali, E.; et al.