P1098: OUTCOME OF FOLLICULAR LYMPHOMA PATIENTS IN MAINTENANCE TREATMENT WITH ANTICD20 MONOCLONAL ANTIBODIES IN SARS-COV2 ERA: RESULTS FROM A MULTICENTER, RETROSPECTIVE- PROSPECTIVE ITALIAN STUDY. (23rd June 2022) - Castellino, A.; Castellino, C.; Boccomini, C.; Clerico, M.; Nicoli, P.; Vanazzi, A.; Fanelli, F.; Perrone, T.; Marchesi, F.; Cocito, F.; Merli, M.; Bigliardi, S.; et al.