1. Myelodysplastic Syndromes Center, Columbia University Medical Center, Columbia University, New York, NY;
2. Laboratory of Membrane Biology, New York Blood Center, New York, NY;
3. Department of Hematology, First Affiliated Hospital of Zhengzhou University, Zhengzhou, China;
4. Department of Orthopedic Surgery, New York Presbyterian Cornell Hospital, New York NY;
5. Laboratory of Red Cell Physiology, New York Blood Center, New York, NY; and
6. School of Life Science, Zhengzhou University, Zhengzhou, China