1. Department of Pathology, Nanfang Hospital, Guangzhou, Guangdong, China
2. Department of Pathology, School of Basic Medical Sciences, Southern Medical University, Guangzhou, Guangdong, China
3. Guangdong Province Key Laboratory of Molecular Tumor Pathology, Guangzhou, Guangdong, China
4. Department of General Surgery, Nanfang Hospital, Guangzhou, Guangdong, China