1. Saban Research Institute of Childrens Hospital Los Angeles, University of Southern California, Los Angeles, California
2. Clinical Trials & Surveys Corp, Baltimore, Maryland
3. Department of Pediatrics, Division of Allergy and Immunology, Baylor College of Medicine, Houston, Texas
4. Department of Pediatrics, Division of Infectious Diseases, Children's Hospital Boston, Boston, Massachusetts
5. Department of Pediatrics, Division of Infectious Diseases, Columbia University, New York, New York
6. Quest Diagnostics Inc, Baltimore, Maryland
7. GlaxoSmithKline, Research Triangle, North Carolina
8. Department of Pediatrics, Division of Immunology, University of Illinois, Chicago, Illinois
9. Pediatric, Adolescent, and Maternal AIDS Branch, Center for Research for Mothers and Children
10. National Children's Study, Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, Department of Health and Human Services, Bethesda, Maryland