1. Department of Pediatrics, Children’s Hospital Colorado, University of Colorado School of Medicine, Aurora, Colorado
2. Cystic Fibrosis Foundation Therapeutics Development Network Coordinating Center, Seattle Children’s Research Institute, Seattle, Washington
3. Department of Medicine, University of Texas Southwestern Medical Center, Dallas, Texas
4. Department of Pediatrics, Penn State Milton S. Hershey Medical Center, Hershey, Pennsylvania
5. Department of Pediatrics, University of Arizona, Tucson, Arizona
6. Department of Medicine, University of Minnesota, Minneapolis, Minnesota
7. Department of Pediatrics, Jacobs School of Medicine, University at Buffalo, Buffalo, New York
8. Department of Pediatrics, Children's Hospital of Pittsburgh, University of Pittsburgh Medical Center, Pittsburgh, Pennsylvania
9. Department of Pediatrics, Children’s Hospital of Michigan, Detroit, Michigan
10. Department of Pediatrics, Children’s Hospital of Wisconsin, Medical College of Wisconsin, Milwaukee, Wisconsin
11. Department of Pediatrics, Cincinnati Children’s Hospital Medical Center, Cincinnati, Ohio
12. Department of Medicine, Vanderbilt University Medical Center, Nashville, Tennessee
13. Department of Pediatrics, University of Wisconsin School of Medicine and Public Health, Madison, Wisconsin
14. Department of Pediatrics, Nationwide Children’s Hospital, The Ohio State University College of Medicine, Columbus, Ohio
15. Department of Medicine, Rainbow Babies and Children’s Hospital, Cleveland, Ohio
16. Department of Pediatrics, Nemours Children’s Hospital, Orlando, Florida
17. Callion Pharma, Jonesborough, Tennessee and
18. Department of Statistics, University of Washington, Seattle, Washington