1. Case Western Reserve University School of Medicine, Cleveland, Ohio, USA
2. Washington University in St. Louis, St. Louis, MO, USA
3. Cleveland Clinic Foundation, Cleveland, OH, USA
4. Cincinnati Children’s Hospital and the University of Cincinnati College of Medicine, Cincinnati, OH, USA
5. Icahn School of Medicine at Mount Sinai, New York, NY, USA
6. Johns Hopkins University School of Medicine, Baltimore, MD, USA
7. Janssen Research and Development, San Diego, CA, USA
8. California Institute of Technology, Pasadena, CA, USA
9. Massachusetts General Hospital and Harvard Medical School, Boston, MA, USA
10. School of Public Health, Harvard University, Boston, MA, USA
11. University of North Carolina, Chapel Hill, NC, USA
12. Pennsylvania State University College of Medicine, Hershey, PA, USA
13. Duke University School of Medicine, Durham, NC, USA
14. Crohn’s & Colitis Foundation, New York, NY, USA
15. Harvard Medical School and Boston Children’s Hospital, Boston, MA, USA
16. Medical College of Wisconsin, Milwaukee, WI, USA
17. University of Chicago, Chicago, IL, USA