1. Department of Pediatrics, Cincinnati Children’s Hospital, University of Cincinnati School of Medicine, Cincinnati, Ohio;
2. Departments of Pediatrics, and
3. Meyers Primary Care Institute, Worcester, Massachusetts;
4. Medicine, University of Massachusetts, Worcester, Massachusetts;
5. Department of Pediatrics, Boston University, Boston, Massachusetts;
6. Welch Medical Library, Johns Hopkins Medical Center, Baltimore, Maryland; and
7. Department of Pediatrics, Medical University of South Carolina, Charleston, South Carolina