1. Clinic for Special Children, Strasburg, PA, USA
2. Regeneron Genetics Center, Regeneron Pharmaceuticals Inc., Tarrytown, NY, USA
3. Program in Cellular and Molecular Biology, University of Michigan, Ann Arbor, MI, USA
4. Medical Scientist Training Program, University of Michigan, Ann Arbor, MI, USA
5. Department of Biology, Biological Foundations of Behavior Program, Franklin & Marshall College, Lancaster, PA, USA
6. New Leaf Center, Mount Eaton, OH, USA
7. Department of Pediatrics, Akron Children’s Hospital, Akron, OH, USA
8. Northeast Ohio Medical University, Rootstown, OH, USA
9. Department of Medical Imaging, Nemours/Alfred I. duPont Hospital for Children, Wilmington, DE, USA
10. Department of Pediatrics, Nemours/Alfred I. duPont Hospital for Children, Wilmington, DE, USA
11. Department of Pediatrics, Sidney Kimmel Medical College at Thomas Jefferson University, Philadelphia, PA, USA
12. Division of Pediatric Gastroenterology, Department of Pediatrics, Mayo Clinic, Rochester, MN, USA
13. Division of Pediatric Gastroenterology, Department of Pediatrics, Nemours/Alfred I. duPont Hospital for Children, Wilmington, DE, USA
14. Department of Pathology and Laboratory Medicine, Nemours Children's Hospital, Orlando FL, USA
15. Department of Gastroenterology, Children's Hospital at Cleveland Clinic, Cleveland, OH USA
16. Cleveland Clinic Lerner College of Medicine of Case Western Reserve University, Cleveland, OH, USA
17. Department of Human Genetics, University of Michigan, Ann Arbor, MI, USA