Treatments received by LOT. Sankey plot showing treatments received by the study population in 1L to 4L. Chemotherapy, chemotherapy + CD20 (CIT), and chemotherapy + CD20 + other regimens are combined into 1 category (chemotherapy w/wo CD20 w/wo other). All other therapies and combinations not stated explicitly are combined in the “other treatment combination” category. w/wo, with/without.