| 1997 – 2021 |
Northwestern University Feinberg School of Medicine, Chicago, United States |
| 2000 – 2021 |
Northwestern University, Evanston, United States |
| 2020 |
NMH/Arkes Family Pavilion, Chicago, United States |
| 2020 |
Digestive Health Center, Chicago, United States |
| 2019 |
Division of Gastroenterology and Hepatology, Chicago, United States |
| 2004 – 2018 |
Northwestern Memorial Hospital, Chicago, United States |
| 2013 |
Esophageal Diagnostic Working Group, Chicago, United States |
| 2007 |
Baylor College of Medicine, Houston, United States |
| 2007 |
VA Medical Center, United States |
| 2002 |
University of Wisconsin School of Medicine and Public Health, Madison, United States |
