P1263: A SENSITIVE NGS ASSAY TO DETECT MEASURABLE RESIDUAL DISEASE (MRD) IN B-CELL LYMPHOPROLIFERATIVE DISEASES. (23rd June 2022) - Hebert, L.; Shah, P.; Diaz, O.; Street, A. A.; Li, J.; Rudenko, E.; Zlotnicki, A. M.; Morrison, C.; Bomben, R.; Huang, Y.; Medina Herrera, A.; Wong, A.; et al.