NCT07441967 2026-03-02The Safety and Efficacy of the Regimen of Thiotepa + Fludarabine +Granulocyte Colony-Stimulating Factor+ Cytarabine + Busulfan in Single Unrelated Umbilical Cord Blood TransplantationInstitute of Hematology & Blood Diseases Hospital, ChinaPhase 2 Not yet recruiting44 enrolled