Poppe B, Cauwelier B, Van Limbergen H, Yigit N, Philippe J, Verhasselt B, De Paepe A, Benoit Y, Speleman F. Novel cryptic chromosomal rearrangements in childhood acute lymphoblastic leukemia detected by multiple color fluorescent in situ hybridization. Haematologica 2005; 90(9):1179-1185.