1. The Pediatric Research Consortium at the Children's Hospital of Philadelphia, Philadelphia, Pennsylvania.
2. Center for Biomedical Informatics at the Children's Hospital of Philadelphia, Philadelphia, Pennsylvania.
3. Center for Pediatric Clinical Effectiveness at the Children's Hospital of Philadelphia, Philadelphia, Pennsylvania.
4. PolicyLab at The Children's Hospital of Philadelphia, Philadelphia, Pennsylvania.
5. Pediatric Research in Office Settings at the American Academy of Pediatrics, Elk Grove Village, Illinois.
6. Maternal and Child Health Bureau at the Health Resources and Service Administration, Rockville, Maryland.
7. Department of Biostatistics and Epidemiology at the Perelman School of Medicine at the University of Pennsylvania, Philadelphia, Pennsylvania.
8. Department of Pediatrics at the Perelman School of Medicine at the University of Pennsylvania, Philadelphia, Pennsylvania.
9. University of Vermont College of Medicine, Burlington, Vermont.
10. Tufts University School of Medicine, Boston, Massachusetts.