Follicular lymphoma (FL) grade 1-2-3a Small lymphocytic lymphoma (SLL) with absolute lymphocyte count < 5 x 109/L at the time of diagnosis and at study entry Lymphoplasmacytoid lymphoma/Waldenström macroglobulinemia (LPL/WM) Marginal zone lymphoma (MZL) (splenic, nodal, or extra-nodal)