1. Department of Lymphoma & Hematology, The Affiliated Tumor Hospital of Xiangya Medical School, Central South University, Changsha, Hunan, China
2. Department of Histology and Embryology, Xiangya School of Medicine, Central South University, Changsha, Hunan, China
3. Graduate Collaborative Training Base of Hunan Cancer Hospital, Hengyang Medical School, University of South China, Hengyang, Hunan, China
4. Department of Human Anatomy and Histoembryology of School of Basic Medical Sciences, Yiyang Medical College, Yiyang, Hunan, China