P720: PROACTIVE DASATINIB DOSE REDUCTION IN THE ALLG CML 12 DIRECT STUDY BASED ON TROUGH LEVELS MINIMISE TOXICITY AND PRESERVE EFFICACY. (23rd June 2022) - Yeung, D.; Grigg, A.; Shanmuganathan, N.; Soltenbeck, A.; White, D.; Branford, S.; Viiala, N.; Rowlings, P.; Mills, A.; Shortt, J.; Tiley, C.; Ross, D.; et al.