P611: NEXT-CLL: A NEW NGS-BASED METHOD FOR RAPID ASSESSMENT OF IGHV MUTATIONAL STATUS IN CHRONIC LYMPHOID LEUKEMIA. (23rd June 2022) - Bourbon, E.; Chabane, K.; Michallet, A.-S.; Ferrant, E.; Mosnier, I.; Poulain, S.; Giraud, M.; Bouvard, A.; Ghesquieres, H.; Hayette, S.; Sujobert, P.; Huet, S.