1. Division of Gastroenterology and Hepatology, University of Toledo, Toledo, Ohio
2. Center for Interventional Gastroenterology at UTHealth (iGUT), McGovern Medical School, Houston, Texas
3. Division of Gastroenterology, Ascension providence Hospital, Southfield, Michigan, United States
4. Division of Gastroenterology, University of California, San Francisco, California, United States
5. Division of Gastroenterology, Virginia Commonwealth University, Richmond, Virginia, United States
6. University of Toledo Libraries, University of Toledo, Toledo, Ohio, United States
7. Division of Gastroenterology, West Virginia University, Morgantown, West Virginia, United States