88 BONE MARROW BLAST (BMBL) RESPONSE CORRELATES WITH OVERALL SURVIVAL IN RIGOSERTIB-TREATED PATIENTS WITH HIGHER-RISK MDS AFTER FAILURE OF HYPOMETHYLATING AGENTS (HMAS): A NEW RESPONSE CRITERION?. (April 2015) - Silverman, L.R.; Fenaux, P.; Al-Kali, A.; Baer, M.R.; Sekeres, M.; Roboz, G.; Gaidano, G.; Scott, B.; Greenberg, P.; Platzbecker, U.; Steensma, D.P.; Kambhampati, S.; et al.