1. Division of Hematology/Medical Oncology, Department of Medicine Taichung Veterans General Hospital Taichung Taiwan
2. Division of Hematology‐Oncology, Department of Internal Medicine Chang Gung Memorial Hospital Linkou Taiwan
3. Biostatistics Task Force Taichung Veterans General Hospital Taichung Taiwan
4. Department of Life Science Tunghai University Taichung Taiwan
5. School of Medicine Chung Shan Medical University Taichung Taiwan