GYPA and myelodysplastic syndrome: The expression levels of FTL on the membrane of CD235a+ BM cells were (3.11 ± 5.39%), (2.41 ± 6.42%), (2.29 ± 0.67%), and (0.18 ± 0.36%) in the untreated group, the recovered group, the group of low-risk MDS and AA, and the case-control group, respectively.