1. Department of Medical Research, Chang Gung Memorial Hospital, Graduate Institute of Clinical Medical Sciences, Chang Gung University, Taoyuan 333, Taiwan, R.O.C.
2. Department of Internal Medicine, Division of Hematology‑Oncology, Chang Gung Memorial Hospital, Taipei 105, Taiwan, R.O.C.
3. Department of Nephrology, Chang Gung Memorial Hospital, Chang Gung University, Taoyuan 333, Taiwan, R.O.C.