1. Key Laboratory of Genomic and Precision Medicine, Collaborative Innovation Center of Genetics and Development, Beijing Institute of Genomics, Chinese Academy of Sciences, Beijing, China;
2. University of Chinese Academy of Sciences, Beijing, China;
3. Division of Hematology, Department of Medicine and
4. Stem Cell Program, Institute for Cell Engineering, Johns Hopkins University School of Medicine, Baltimore, MD; and
5. Translational and Functional Genomics Branch, National Institutes of Health, National Human Genome Research Institute, Bethesda, MD