1. University of California Irvine Medical Center, Orange, CA, USA
2. McGovern Medical School, UTHealth, Houston, TX, USA
3. Johns Hopkins University School of Medicine, Baltimore, MD, USA
4. University of Southern California, Los Angeles, CA, USA
5. Mayo Clinic, Rochester, MN, USA
6. University of Texas Health Science Center, Houston, TX, USA
7. David Geffen School of Medicine at UCLA, Los Angeles, CA, USA
8. Stanford University, Palo Alto, CA, USA
9. Institute of Esophageal and Reflux Surgery, Englewood, CO, USA
10. ThedaCare Regional Medical System, Appleton, WI, USA
11. Institute of Image Guided Surgery, Strasbourg, France
12. Northwestern University, Chicago, IL, USA