Affiliations

• ¹ Academy of Endoscopy, Woodside, California and, Division of Gastroenterology, San Francisco Veterans Affairs Medical Center, San Francisco, California.
• ² Department of Internal Medicine, College of Medicine, National Taiwan University, Taipei, Taiwan and, Department of Internal Medicine and, Health Management Center, National Taiwan University Hospital, Taipei, Taiwan.
• ³ Department of Gastroenterology and Hepatology, Singapore General Hospital, Singapore.
• ⁴ Academy of Endoscopy, Woodside, California.
• ⁵ Department of Endoscopy and Medicine, Hiroshima University, Hiroshima, Japan.
• ⁶ Department of Gastroenterology, University of Kansas Medical Center, Kansas City, Kansas.
• ⁷ Department of Gastrointestinal Oncology, Osaka International Cancer Institute, Osaka, Japan.
• ⁸ Division of Gastroenterology and Hepatology, University of Colorado Anschutz Medical Campus, Aurora, Colorado.
• ⁹ Division of Gastroenterology and Hepatology, Stanford University, Palo Alto, California.