1. Division of Hematology, Children’s Hospital of Philadelphia, Philadelphia, Pennsylvania
2. Division of Oncology, Children’s Hospital of Philadelphia, Philadelphia, Pennsylvania
3. Division of Behavioral Medicine, Cincinnati Children’s Hospital and Medical Center, Cincinnati, Ohio
4. Department of Pediatrics, University of Cincinnati School of Medicine, Cincinnati, Ohio
5. Department of Pediatrics, University of Pennsylvania School of Medicine, Philadelphia
6. Department of Family & Community Health, University of Pennsylvania School of Nursing, Philadelphia
7. Pfizer, New York, New York