Huijuan Shi1, Tiantian Zhen1, Fenfen Zhang1, Yu Dong1, Anjia Han2. 1. Department of Pathology, The First Affiliated Hospital, Sun Yat-Sen University, Guangzhou, China. 2. Department of Pathology, The First Affiliated Hospital, Sun Yat-Sen University, Guangzhou, China. Electronic address: hananjia@mail.sysu.edu.cn.