1. Department of Hematology, The First Affiliated Hospital, Harbin Medical University, Harbin, People’s Republic of China
2. Department of Hematology, The Fourth Affiliated Hospital, Harbin Medical University, Harbin, People’s Republic of China
3. Institute of Hematology, The Second Hospital of Shanxi Medical University, Taiyuan, People’s Republic of China
4. Department of Hematology, Yantai Yuhuangding Hospital, Qingdao University Medical College, Yantai, People’s Republic of China