NCT02510495
- Conditions
- Complications, Digestive System Diseases, Dilatation, Pathologic, +4 more
- Locations
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- Third Military Medical University Chongqing, Chongqing Municipality, China
- The first hospital of Lanzhou university Lanzhou, Gansu, China
- The Second Affiliated Hospital of Guangzhou Medical University Guangzhou, Guangdong, China
- The Second Hospital of Hebei Medical University Shijiazhuang, Hebei, China