Frequent Mutation of the Polycomb-Associated Gene ASXL1 In Acute Myeloid Leukemia Secondary to Myelodysplastic Syndrome or Chronic Myelomonocytic Leukemia - Fernandez-Mercado, M; Pellagatti, A; Perry, J; Fernandez-Santamaria, C; Calasanz, M; Larrayoz, M; Odero, MD; Killick, S; Wainscoat, J; Boultwood, J (BLOOD, 2010)