Institution: | 1. Department of Gastroenterology and Hepatology, Johns Hopkins Hospital, Baltimore, Maryland, USA;2. University of Missouri Health System, Columbia, Missouri, USA;3. Sri Guru Ramdas Institute of Medical Sciences and Research Vallah, Amritsar, Amritsar, India;1. Division of Gastroenterology and Hepatology, Department of Internal Medicine, Keio University School of Medicine, Shinjuku-ku, Tokyo, Japan;2. Division of Research and Development for Minimally Invasive Treatment, Cancer Center, Keio University School of Medicine, Shinjuku-ku, Tokyo, Japan;3. Center for Diagnostic and Therapeutic Endoscopy, Keio University School of Medicine, Shinjuku-ku, Tokyo, Japan |