1. Department of Gastrointestinal Surgery The Third Xiangya Hospital of Central South University Changsha China
2. School of Life Sciences Central South University Changsha China
3. Medical Department The Third Xiangya Hospital of Central South University Changsha China
4. Xiangya School of Public Health Central South University Changsha China
5. Graduate School of Guilin Medical University Guilin China
6. Department of Otolaryngology‐Head Neck Surgery The Third Xiangya Hospital of Central South University Changsha China