Leukemia, Myelomonocytic, ChronicMyelodysplastic SyndromesTaraxacumMyeloproliferative DisordersAnemia, Refractory, with Excess of BlastsLeukemia, Myelomonocytic, JuvenileAzacitidineKaryotypingLeukemia, MyeloidBone MarrowLeukemia, Myelogenous, Chronic, BCR-ABL PositiveLeukemia, Myeloid, AcuteAntimetabolites, AntineoplasticMutationPrognosisSurvival AnalysisTreatment Outcome