Affiliations

• ¹ Department of Pediatrics, University of Maryland School of Medicine, Baltimore, Maryland.
• ² Department of Health Policy and Management, University of Maryland School of Public Health, College Park, Maryland.
• ³ Department of Pediatrics, Robert Larner, MD, College of Medicine, University of Vermont, Burlington, Vermont.
• ⁴ Departments of Emergency Medicine and Pediatrics, University of Florida College of Medicine - Jacksonville, Jacksonville, Florida.
• ⁵ Department of Pediatrics, Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania.
• ⁶ Department of Pediatrics, Northwestern University Feinberg School of Medicine, Chicago, Illinois.
• ⁷ Department of Emergency Medicine, University of California, Davis, Sacramento, California.