P1133: SUB-CUTANEOUS RITUXIMAB INDUCTION FOLLOWED BY SHORT RITUXIMAB MAINTENANCE IMPROVES PFS IN PATIENTS WITH LOW-TUMOR BURDEN FOLLICULAR LYMPHOMA. FINAL RESULTS OF FLIRT PHASE III TRIAL, A LYSA STUDY. (23rd June 2022) - Cartron, G.; Bachy, E.; Tilly, H.; Daguindau, N.; Pica, G.-M.; Bijou, F.; Mounier, C.; Clavert, A. M.; Damaj, G. L.; Slama, B.; Casasnovas, O.; Houot, R.; et al.