5 ' AZACITIDINE IN COMBINATION WITH VALPROIC ACID INDUCES COMPLETE REMISSIONS IN PATIENTS WITH HIGH RISK ACUTE MYELOID LEUKAEMIA BUT DOES NOT ERADICATE CLONAL LEUKAEMIC STEM/PROGENITOR CELLS - Craddock, C; Goardon, N; Griffiths, M; Siddique, S; Cavenagh, J; Vyas, P (2009)