In a limited number of cases, patients with low-risk CLL/SLL may be initiated on Rituximab and Fludarabine treatment. For example, individuals who are candidates for bone marrow transplantation may be started on Rituximab Fludarabine as an induction regimen prior to transplantation. Additionally, some low-risk patients may be started on Rituximab and Fludarabine for psychological reasons (patient insistence on starting chemotherapy prior to disease progression). However, it must be stressed that low-risk CLL/SLL patients will be discouraged from initiating therapy except in these specific cases.