1. Department of Cell and Developmental Biology, University of Michigan Medical School, Ann Arbor, MI;
2. Department of Integrative Genomics Tohoku Medical Megabank, Tohoku University, Sendai, Japan;
3. State Key Laboratory of Experimental Hematology, Institute of Hematology and Blood Diseases Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Tianjin, China; and
4. Department of Pediatrics and Infectious Diseases, University of Michigan Medical School, Ann Arbor, MI