1. Key Laboratory of Cellular and Molecular Immunology; College of Medicine; Henan University; Kaifeng P. R. China
2. School of Cancer Sciences; College of Medical and Dental Sciences; University of Birmingham; Birmingham UK
3. Department of Clinical Oncology; Henan Tumor Hospital; Zhengzhou P. R. China
4. Department of Anatomical and Cellular Pathology; The Chinese University of Hong Kong; Prince of Wales Hospital; SAR Hong Kong China