1. Division of Hematology, Department of Pediatrics, Children’s Hospital of Philadelphia, Philadelphia, PA;
2. Division of Hematology-Oncology, Department of Pediatrics, Weill Cornell Medical College, New York, NY;
3. Erythropoiesis Laboratory, and
4. Laboratory Data Analytic Services, New York Blood Center, New York, NY;
5. Department of Pediatrics, and
6. Edward A. Doisy Department of Biochemistry and Molecular Biology, Saint Louis University School of Medicine, St. Louis, MO;
7. Department of Molecular and Integrative Physiology, and
8. Division of Gastroenterology, Department of Internal Medicine, University of Michigan, Ann Arbor, MI;
9. Department of Medicine, and
10. Department of Pathology, David Geffen School of Medicine, University of California, Los Angeles, CA;
11. Merganser Biotech Inc., King of Prussia, PA;
12. Department of Cell and Developmental Biology, Weill Cornell Medical College, New York, NY; and
13. Cell and Molecular Biology Graduate Group, University of Pennsylvania, Philadelphia, PA