1. Division of Hematology-Oncology, Chang Gung Memorial Hospital at Linkou, Tao-Yuan, Taiwan, Republic of China.
2. College of Medicine, Chang Gung University, Tao-Yuan, Taiwan, Republic of China.
3. Division of Pulmonary and Critical Care Medicine, Department of Internal Medicine, Chang Gung Memorial Hospital at Linkou, Tao-Yuan, Taiwan, Republic of China.
4. Department of Respiratory Therapy, Chang Gung University, Tao-Yuan, Taiwan, Republic of China.
5. Division of Hepato-Gastroenterology, Department of Internal Medicine, Chang Gung Memorial Hospital at Kaohsiung, Kaohsiung, Taiwan, Republic of China.
6. Department of Nursing, Chang Gung Memorial Hospital at Kaohsiung, Kaohsiung, Taiwan, Republic of China.
7. School of Nursing, Medical College, Chang Gung University, Tao-Yuan, Taiwan, Republic of China.