IL18 and non-Hodgkin lymphoma: More cycles (≥6) and prolonged durations of RTX therapy, hematopoietic stem cell transplantation (HSCT) [38], interleukin-18 (IL-18) rs243908, and IL-4 haplotype rs2243248~rs2243263 were shown to be associated with HBV-RS among HBsAg-negative patients with CD20 NHL undergoing RTX treatment [39].