1. Department of Pediatrics, Case Western Reserve University, Cleveland, Ohio
2. Department of Pediatrics, Research Triangle Institute, Research Triangle Park, North Carolina
3. Department of Pediatrics, Yale University, New Haven, Connecticut
4. Department of Pediatrics, Emory University, Atlanta, Georgia
5. Department of Pediatrics, University of Alabama, Birmingham, Alabama
6. Department of Pediatrics, Brown University, Providence, Rhode Island
7. Department of Pediatrics, University of Miami, Miami, Florida
8. Department of Pediatrics, Wake Forest University, Winston-Salem, North Carolina
9. Department of Pediatrics, University of Texas, Southwestern, Dallas, Texas
10. Department of Pediatrics, Wayne State University, Detroit, Michigan
11. Department of Pediatrics, Duke University, Durham, North Carolina
12. Department of Pediatrics, University of Rochester, Rochester, New York
13. Department of Pediatrics, University of Cincinnati, Cincinnati, Ohio
14. Department of Pediatrics, Sharp Mary Birch Hospital, San Diego, California
15. Department of Pediatrics, Indiana University, Indianapolis, Indiana
16. Department of Pediatrics, Stanford University, Palo Alto, California
17. Department of Pediatrics, University of Texas, Houston, Texas