62 MUTATIONS IN EPIGENETIC REGULATORS ARE SIGNIFICANTLY ASSOCIATED WITH ABERRANT EXPRESSION OF MYELOID DIFFERENTIATION ANTIGENS ON MYELOID PROGENITOR CELLS IN LOW/INTERMEDIATE RISK MDS. (April 2015) - Coelho, P. Silva; Cremers, E.M.P.; Westers, T.M.; de Graaf, A.O.; Alhan, C.; Cali, C.; Visser-Wisselaar, H.A.; Chitu, D.A.; Vellenga, E.; Klein, S.K.; Wijermans, P.W.; de Greef, G.E.; et al.