1. Department of Microbiology and Immunology, Indiana University School of Medicine, Indianapolis, Indiana, USA
2. Stem Cell and Regenerative Medicine Lab, Institute of Health Service and Transfusion Medicine, AMMS, Beijing, People's Republic of China
3. Experimental Hematology and Biochemistry Lab, Beijing Institute of Radiation Medicine, AMMS, Beijing, People's Republic of China
4. South China Research Center for Stem Cell & Regenerative Medicine, SCIB, Guangzhou, People's Republic of China
5. Department of Medicine, Indiana University School of Medicine, Indianapolis, Indiana, USA
6. Department of Medical and Molecular Genetics, Indiana University School of Medicine, Indianapolis, Indiana, USA
7. Department of Pediatrics, Indiana University School of Medicine, Indianapolis, Indiana, USA