Chia-Yu Chen1, Chang-Fang Chiu2, Li-Yuan Bai3. 1. Division of Hematology and Oncology, Department of Internal Medicine, China Medical University Hospital, Taichung, 40402 Taiwan. 2. Division of Hematology and Oncology, Department of Internal Medicine, China Medical University Hospital, Taichung, 40402 Taiwan; Cancer Center, China Medical University Hospital, Taichung, 40402 Taiwan; College of Medicine, School of Medicine, China Medical University, Taichung, 40402 Taiwan. 3. Division of Hematology and Oncology, Department of Internal Medicine, China Medical University Hospital, Taichung, 40402 Taiwan; College of Medicine, School of Medicine, China Medical University, Taichung, 40402 Taiwan. Electronic address: lybai6@gmail.com.