1. Department of Internal Medicine, Massachusetts General Hospital, Boston
2. Department of Pediatrics, Massachusetts General Hospital, Boston
3. Department of Immunology and Infectious Diseases, Harvard T.H. Chan School of Public Health, Boston, Massachusetts
4. Center for Biostatistics in AIDS Research, Harvard T.H. Chan School of Public Health, Boston, Massachusetts
5. Department of Epidemiology, Harvard T.H. Chan School of Public Health, Boston, Massachusetts
6. Department of Biostatistics, Harvard T.H. Chan School of Public Health, Boston, Massachusetts
7. Department of Pediatrics, Feinberg School of Medicine, Northwestern University, Chicago, Illinois
8. Division of Infectious Diseases, Department of Pediatrics, Ann & Robert H. Lurie Children’s Hospital of Chicago, Chicago, Illinois
9. Department of Pediatrics, Tulane University School of Medicine, New Orleans, Louisiana