[1] Kangbuk Samsung Hospital,Division of Gastroenterology, Department of Internal Medicine and Gastrointestinal Cancer Center
[2] Sungkyunkwan University School of Medicine,Department of Internal Medicine, College of Medicine
[3] Kyung Hee University,Division of Gastroenterology
[4] Department of Internal Medicine and Liver Research Institute,Division of Gastroenterology, Department of Internal Medicine
[5] Seoul National University College of Medicine,Division of Gastroenterology, Department of Internal Medicine
[6] Asan Medical Center,Department of Medicine
[7] University of Ulsan College of Medicine,Department of Internal Medicine
[8] Gastroenterology,Department of Internal Medicine
[9] Kyungpook National University Hospital,Department of Internal Medicine
[10] School of Medicine,Department of Internal Medicine
[11] Kyungpook National University,Department of Internal Medicine
[12] Gangnam Severance Hospital,Division of Gastroenterology, Department of Internal Medicine
[13] Yonsei University College of Medicine,Division of Gastroenterology, Department of Internal Medicine
[14] Samsung Medical Center,Department of Internal Medicine
[15] Sungkyunkwan University School of Medicine,Department of Internal Medicine
[16] Chonnam National University Medical School,Department of Internal Medicine
[17] Pusan National University School of Medicine,undefined
[18] Korea University Guro Hospital,undefined
[19] Korea University College of Medicine,undefined
[20] Seoul St. Mary’s Hospital,undefined
[21] The Catholic University of Korea,undefined
[22] Hallym University College of Medicine,undefined
[23] Hanyang University College of Medicine,undefined
[24] College of Medicine,undefined
[25] Incheon St. Mary’s Hospital,undefined
[26] The Catholic University of Korea,undefined
[27] Kosin University College of Medicine,undefined
[28] Sanggye Paik Hospital,undefined
[29] Inje University College of Medicine,undefined
[30] Ewha Womans University College of Medicine,undefined
[31] Center for Gastric Cancer,undefined
[32] National Cancer Center,undefined