1. Department of Medicine, School of Medicine, Boston University and Boston Medical Center, Boston, Massachusetts;
2. Global Health Program, Duke Kunshan University, Kunshan, Jiangsu Province, China;
3. Duke Global Health Institute, Duke University, Durham, North Carolina;
4. Department of Pediatrics, First Affiliated Hospital, and
5. School of Public Health, Guangxi Medical University, Nanning, Guangxi, China;
6. Division of General Pediatrics, Massachusetts General Hospital and Harvard Medical School, Harvard University, Boston, Massachusetts; and
7. Julius B. Richmond Center of Excellence, American Academy of Pediatrics, Elk Grove Village, Illinois