NCT02135601
- Conditions
- Adenoma, Neoplasms, Neoplasms by Histologic Type, +5 more
- Locations
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- Chaoyang Hospital Beijing, Beijing Municipality, China
- General Hospital of Guangzhou Military Command Guangzhou, Guangdong, China
- Union Hospital of Tongji Medical college Wuhan, Hubei, China
- Xijing Hospital of Digestive Diseases Xi'an, Shaanxi, China