1. Guangzhou Institute of Oncology Affiliated Cancer Hospital & Institute of Guangzhou Medical University Guangzhou Guangdong Province China
2. Department of Gastroenterology Renmin Hospital of Wuhan University Wuhan Hubei Province China
3. Department of Respiratory and Critical Care Medicine The First Affiliated Hospital of Xi'an Jiaotong University Xi'an Shannxi Province China
4. College of Clinical Medicine Xi'an Medical University Xi'an Shannxi Province China
5. School of Aeronautics Northwestern Polytechnical University Xi'an Shannxi Province China