The subclonal complexity of STIL-TAL1+ T-cell acute lymphoblastic leukaemia by Furness, CL, Braga Mansur, M, Weston, VJ, Ermini, L, van Delft, FW, Jenkinson, S, Gale, R, Harrison, CJ, Pombo-de-Oliveira, MS, Sanchez-Martin, M, Ferrando, AA, Kearns, P, Titley, I, Ford, AM, Potter, NE, Greaves, M