1. Department of Pediatrics, Wake Forest Baptist Medical Center and Wake Forest University, Winston-Salem, North Carolina
2. Department of Pediatrics, John P. and Kathrine G. McGovern Medical School, University of Texas Health Science Center at Houston, Houston, Texas
3. Department of Pediatrics, School of Medicine, The University of North Carolina at Chapel Hill, Chapel Hill, North Carolina
4. Departments of Preventive Medicine
5. Division of General Pediatrics, Department of Pediatrics, School of Medicine, Stanford University, Palo Alto, California
6. Department of Child Health, College of Medicine–Phoenix, University of Arizona, Phoenix, Arizona
7. Division of Hospital Medicine, Children’s Hospital Los Angeles, Los Angeles, California
8. Pediatrics, Keck School of Medicine, University of Southern California, Los Angeles, California