Hallym University Sacred Heart Hospital, Anyang, Korea, Republic of
Kyungpook National University Hospital, Daegu, Korea, Republic of
Keimyung University Dongsan Hospital, Daegu, Korea, Republic of
University of California San Diego, La Jolla, California, United States
Anhui Provincial Cancer Hospital, Hefei, Anhui, China
Peking Union Medical College Hospital, Chinese Academy of Medical Sciences, Beijing, Beijing, China
Peking University People's Hospital, Beijing, Beijing, China
Celerion, Lincoln, Nebraska, United States
Celerion, Tempe, Arizona, United States
Raleigh Neurology Associates,300209729, Raleigh, North Carolina, United States
Fort Wayne Neurological Center 150711262, Fort Wayne, Indiana, United States
Turku University Hospital, Turku, Finland
Grand Teton Research Group, PLL, Idaho Falls, Idaho, United States
UMASS Memorial Medical Center, Worcester, Massachusetts, United States
Gastro Center of Maryland, Columbia, Maryland, United States
Banglore Medical College & Research Institute, Bangalore, Karnatka, India
Deccan College of Medical Sciences, Hyderabad, India
Asian Institute of Gastroenterology, Hyderabad, Telangana, India
Takeda Selected Site, Tokyo, Japan
Soon Chunhyang University Hospital Bucheon, Bucheon, Korea, Republic of
Inje University Busan Paik Hospital, Busan, Korea, Republic of
Inje University Haeundae Paik Hospital, Busan, Korea, Republic of