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
Takeda Selected Site 1, Suita, Osaka, Japan
Takeda Selected Site 13, Shinagawa-ku, Tokyo, Japan
Takeda Selected Site 8, Shinjuku-ku, Tokyo, Japan
The Children's Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang, China
Childrens Hospital of Hunan province, Changsha, Hunan, China
Jiangsu Province Hosptial, Nanjing, Jiangsu, China
ICr - Instituto da Crianca - HCFMUSP, Sao Paulo, Brazil
Ospedale Pediatrico Bambino Gesu,UOC Onco-ematologia, Roma, Italy
Hospital Santa Marcelina, Sao Paulo, Brazil