POSTER: IBCL-482 Fixed-Duration Subcutaneous Mosunetuzumab (Mosun SC) Leads to High Rates of Durable Responses, Low Rates of Cytokine Release Syndrome (CRS), and Non-Inferior Exposure Compared With Intravenous Administration in Patients With Relapsed/Refractory (R/R) Follicular Lymphoma (FL): Primary Analysis of a Pivotal Phase 2 Study