Jong-Jae Park, MD, Ph.D.
Division of Gastroenterology, Department of Internal Medicine, Korea University Guro Hospital, Korea University College of Medicine, Seoul, Korea
Hironori Yamamoto, MD, Ph.D.
Department of Medicine, Division of Gastroenterology, Jichi Medical University, Tochigi, Japan
Hyun Joo Jang, MD.
Department of Gastroenterology, Hallym University Dongtan Sacred Heart Hospital, Hallym University School of Medicine, Hwaseong, Korea
Sung Noh Hong, MD, Ph.D.
Department of Medicine, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea