Institute of Haematology, Union Hospital, Tongji Medical College;
Institute of Haematology, Union Hospital, Tongji Medical College;
Institute of Haematology, Union Hospital, Tongji Medical College;
Institute of Haematology, Union Hospital, Tongji Medical College;
Institute of Haematology, Union Hospital, Tongji Medical College;
Institute of Haematology, Union Hospital, Tongji Medical College;
Institute of Haematology, Union Hospital, Tongji Medical College;
fludarabine; allogeneic haematopoietic stem cell transplantation; relapse; acute leukaemia;