1. Department of Internal Medicine, College of Medicine, National Cheng Kung University and Hospital, Tainan, Taiwan
2. Institute of Clinical Medicine, College of Medicine, National Cheng Kung University and Hospital, Tainan, Taiwan
3. Department of Medicine, College of Medicine, National Cheng Kung University and Hospital, Tainan, Taiwan
4. Department of Pathology, College of Medicine, National Cheng Kung University and Hospital, Tainan, Taiwan
5. Department of Hematopathology, The University of Texas MD Anderson Cancer Center, Houston.