CD33 is frequently expressed in cases of myelodysplastic syndrome and chronic myelomonocytic leukemia with elevated blast count. Issue 8 (2nd August 2016) - Sanford, David; Garcia-Manero, Guillermo; Jorgensen, Jeffrey; Konoplev, Sergej; Pierce, Sherry; Cortes, Jorge; Kantarjian, Hagop; Ravandi, Farhad