1. Experiment Teaching Center of Basic Medicine, The Fourth Military Medical University, Xi'an, Shan Xi province, China
2. Department of General Surgery, No.406 hospital, Da Lian, Liao Ning Province, China
3. State Key Laboratory of Cancer Biology, Xijing Hospital of Digestive Diseases, The Fourth Military Medical University, Xi’an, Shan Xi Province, China
4. Department of Otorhinolaryngology, Baoji Hospital of Chinese Medicine, Shan Xi Province, China
5. The Key Laboratory of Biomedical Information Engineering of Ministry of Education, School of Life Science and Technology, Xi’an Jiaotong University, Xi’an, Shan Xi Province, China
6. Department of Infectious Diseases, Tangdu Hospital, the Fourth Military Medical University, Xi’an, China