295 IDIOPATHIC CYTOPENIA OF UNKNOWN SIGNIFICANCE (ICUS) AND IDIOPATHIC DYSPLASIA OF UNKNOWN SIGNIFICANCE (IDUS): A MULTI-CENTER REGISTRY STUDY. Issue 1 (April 2015) - Sperr, W.; Sperr, M.; Wimazal, F.; Wiesinger, P.; Stauder, R.; Germing, U.; Valent, P.