Stomach Diseases

• 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 Municipality, China
• The General Hospital of People's Armed Police Forces China — Beijing, Beijing Municipality, China

• Hospital of the University of Pennsylvania — Philadelphia, Pennsylvania, United States

• Samsung Medical Center — Seoul, South Korea

• Otsuka Pharmaceutical Co., Ltd. — Tokyo, Japan

• Texas Tech University HSC at El Paso — El Paso, Texas, United States

• Temple University Hospital — Philadelphia, Pennsylvania, United States

• University of Naples Federico II — Naples, Italy

Not specified

• The first affiliated hospital, Sun Yat-sen University — Guangzhou, Guangdong, China
• Guangdong Provincial Hospital of Chinese Medicine — Guangzhou, Guangdong, China
• Affiliated Hospital of Nanjing University of Traditional Chinese Medicine — Nanjing, Jiangsu, China

• Christian Medical College — Vellore, India
• Clinica Universidad de Navarra — Pamplona, Navarre, Spain
• Complejo Hospitalario de Navarra — Pamplona, Navarre, Spain
• Hospital General Universitario de Alicante — Alicante, Spain