Stomach Diseases

• Midori Municipal Hospital — Nagoya, Aichi-ken, Japan
• Nagoya City University Hospital — Nagoya, Aichi-ken, Japan
• Aichi Medical University Hospital — Okazaki, Aichi-ken, Japan
• Nakadoori General Hospital — Akita, Japan

• Fudan University Cancer Hospital — Shanghai, Shanghai Municipality, China

• Aichi Cancer Center — Nagoya, Aichi-ken, Japan
• Aichi Medical University Hospital — Okazaki, Aichi-ken, Japan
• Akita University Hospital — Akita, Japan
• Nakadoori General Hospital — Akita, Japan

• National University Hospital — Singapore

• Healthcare Center, Digestive Disease Center, Konkuk University Medical Center — Seoul, South Korea

• Department of Gastroenterological Surgery, Faculty of Medicine, Kagawa University — Kita, Kagawa-ken, Japan

• Research Site — Nagoya, Aichi-ken, Japan
• Research Site — Sayama, Osaka, Japan
• Research Site — Sunto-gun, Shizuoka, Japan
• Research Site — Chūō, Tokyo, Japan

• Department of Gastroenterology, Qilu Hospital, Shandong University — Jinan, Shandong, China

Not specified

• Beth Israel Deaconess Medical Center — Boston, Massachusetts, United States