From the Departments of Pediatrics (M.E.L., M.C.B., S. Bansal, S. Bernstein), Population Health Sciences (M.E.L., K.I.P.), Duke University School of Medicine, Durham, NC; University of Utah School of Medicine (S. Bernstein), Salt Lack City; Department of Oncology (E.C.K.), St. Jude Children’s Research Hospital, Memphis, TN; Departments of Neurology and Pediatrics (E.C.K.), UCSF Benioff Children’s Hospital and Department of Epidemiology & Biostatistics (H.C.G.), University of California, San Francisco; Fuqua School of Business and Sanford School of Public Policy (P.A.U.), Duke University, Durham; and Duke University School of Nursing (D.B.), Durham; Cancer Prevention and Control (KIP), Duke Cancer Institute, Durham, NC.