Flowchart. †Major protocol violation (cerebral lymphoma) (n = 1), concurrent illness (septic thrombophlebitis due to Staphylococcus aureus) (n = 1), evolution of lymphoma before treatment (n = 1), misdiagnosis (acute leukemia) (n = 1). ‡Major protocol violation (CNS involved) (n = 1), death (n = 1), evolution of lymphoma before treatment (n = 1).