1. Department of Biochemistry and Molecular Biology, Medical College of Shantou University, Shantou, Guangdong Province, P.R. China
2. Institute of Oncologic Pathology, The Key Immunopathology Laboratory of Guangdong Province, Medical College of Shantou University, Shantou, Guangdong Province, P.R. China
3. Department of Pathology, Medical College of Shantou University, Shantou, Guangdong Province, P.R. China