1. aDepartment of Pediatrics, University of Miami Miller School of Medicine, Miami, Florida
2. bDepartments of Orthopedic Surgery
3. cPopulation Health Sciences, Duke University School of Medicine, Durham, North Carolina
4. dDivision of General Pediatrics, Department of Pediatrics, Johns Hopkins School of Medicine, Baltimore, Maryland
5. eDepartment of Health Systems and Population Health
6. fGlobal Health, Medicine, and Epidemiology, University of Washington, Seattle, Washington
7. gICF, Reston, Virginia
8. hDuke Clinical Research Institute, Durham, North Carolina
9. iPublic Health Sciences, University of Rochester, Rochester, New York