Zhongshan Hospital Fudan University, Shanghai, China
Pharmaceutical Research Associates, Inc., Lenexa, Kansas, United States
Takeda Investigative Site, London, United Kingdom
The First Affiliated Hospital of Anhui Medical University, Hefei, Anhui, China
Yijishan hospital of Wan nan Medical college, Wuhu, Anhui, China
Beijing Chao Yang Hospital, Beijing, Beijing, China
Shiyan Taihe Hospital, Shiyan, Hebei, China
Jiangxi Nanchang 3rd Hospital, Nanchang, Jiangxi, China
Korea University Ansan Hospital, Ansan-si, Gyeonggi-do, Korea, Republic of
Nishi Kumamoto Hospital, Kumamoto, Japan
Simon-Williamson Clinic/Synexus Clinical Research US, Inc, Birmingham, Alabama, United States
Synexus Clinical Research US, Inc/Southwest Family Medicine, Littleton, Colorado, United States
Miami Research Associates, Miami, Florida, United States
University of Pennsylvania Health System, Philadelphia, Pennsylvania, United States
Atlanta Center for Gastroenterology, Decatur, Georgia, United States
Gastroenterology Associates of Northern Virginia, Ltd., Fairfax, Virginia, United States