1. Section of Hematology, Yale University School of Medicine, New Haven, Connecticut (G.G., C.C., S.I.)
2. PhD Program in Health Policy, Harvard University, Cambridge, Massachusetts (L.P.J., A.L.)
3. Section of Pediatric Hematology, Oncology and Bone Marrow Transplant, Yale University School of Medicine, New Haven, Connecticut (L.K.)
4. Department of Health Policy and Management, Harvard T.H. Chan School of Public Health, Boston, Massachusetts (A.P.).