9Lee JJ,Kim HJ,chun U,et al,Comparisons of prognostic scoring systems for myelody splastic syndromes:akorean multicentelr study,Leuk Res,1999,23:425-432.
10Witte TD,Muus P,Pauw BD,et al.Intensive antileukemic treatment of patients younger than 65 years with myelodysplastic by syndromes and Secondary acute myeloblastic leukemia cancer,1990,66:831.