RBV indicates ribavirin; CR, complete response; ORR, overall response rate (complete + partial); SLVL, splenic marginal zone lymphoma with circulating villous lymphocytes; SMZL, splenic marginal zone lymphoma; EMZL, extranodal marginal zone lymphoma of the mucosa-associated lymphoid tissue; and NMZL, nodal marginal zone lymphoma.

*Five additional patients were treated with PegIFNα alone.