1 Department of Pathology, Guangdong Medical University, Dongguan, China; Center of Pathology Diagnosis and Research, Affiliated Hospital of Guangdong Medical University, Zhanjiang, China.
2 Department of Surgical Oncology, First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China.
3 Department of Pathology, Zhujiang Hospital, Southern Medical University, Guangzhou, China.
4 Department of Pathology, Eighth Affiliated Hospital of Sun Yat-sen University, Shenzhen, China. Electronic address: sunyanqin@gdmu.edu.cn.
5 Department of Pathology, Guangdong Medical University, Dongguan, China; Center of Pathology Diagnosis and Research, Affiliated Hospital of Guangdong Medical University, Zhanjiang, China. Electronic address: zengchaosysu@126.com.