1. Department of Oncology, Zhuzhou Hospital Affiliated to Xiangya School of Medicine, Central South University, Zhuzhou City, China
2. Department of Emergency, Zhuzhou Hospital Affiliated to Xiangya School of Medicine, Central South University, Zhuzhou City, China
3. Department of Anorectal, Zhuzhou Hospital Affiliated to Xiangya School of Medicine, Central South University, Zhuzhou City, China