1Hasle H,Clemmen IH,Mikkelsen M.Riske of leukaemia and solid tumours in individuals with Downs syndrome.Lancet,2000,355:165 -169.
2Berger R.Acute lymphoblastic leumia and chromosome21.Cancer genet Cytogene,1997,94:8-12.
3Lange B J,Kbrinsky N,Barnard DR,et al.Distinctive demography,biology,and outcome of acute myeloid; leukemia and myelodysplastic syndrome in children with Down syndrome.Blood,1998,91:608-615.
