Objective:To observe the clinical efficacy and safety of multiple courses of decitabine treatment in patients of myelodysplastic syndrome and acute myeloid leukemia(MDS/AML).Method:We retrospectively analyzed the clinical data of 30 MDS patients and 27 AML patients.Result:In MDS patients treated with decitabine alone,CR/mCR rate was increased along with increased course of treatment,and there was a significant statistical difference(P=0.047).In MDS patients,severe anemia had a significant relationship with ...