1. Division of Palliative Medicine, Department of Internal Medicine, Kuang Tien General Hospital, Taichung, Taiwan.
2. Division of Medical Oncology, Cancer Center of Kuang Tien General Hospital, Taichung, Taiwan.
3. Department of Bioinformatics and Medical Engineering, Asia University, Taichung, Taiwan.
4. Division of Geriatric Medicine, Department of Family Medicine, Kuang Tien General Hospital, Taichung, Taiwan.