Affiliation: | 1. Graduate School of Nursing, Chang Gung University, , Tao‐Yuan, Taiwan;2. Institute of Statistics, National Chiao Tung University, , Hsinchu, Taiwan;3. Division of Hematology‐Oncology, Chang Gung Memorial Hospital, , Tao‐Yuan, Taiwan;4. College of Medicine, Chang Gung University, , Tao‐Yuan, Taiwan |