121 PERIPHERAL BLOOD (PB) WILMS' TUMOR 1 (WT1) EXPRESSION QUANTIFIED BY A STANDARDIZED EUROPEAN LEUKEMIA NET (ELN)-CERTIFIED ASSAY AS PROGNOSTIC AND MINIMAL RESIDUAL DISEASE (MRD) MARKER IN MDS. (April 2015) - Schroeder, T.; Pechtel, S.; Lamers, M.; Dienst, A.; Schuler, E.; Rachlis, E.; Wegener, N.; Kündgen, A.; Kondakci, M.; Fenk, R.; Haas, R.; Germing, U.; et al.