1. Department of Internal Medicine, Chi Mei Medical Center, Tainan, Taiwan
2. Department of Anesthesiology, Chi Mei Medical Center, Tainan, Taiwan
3. Division of Nephrology, Department of Internal Medicine, Chi Mei Medical Center, Tainan, Taiwan
4. Department of Hospital and Health Care Administration, Chia Nan University of Pharmacy and Science, Tainan, Taiwan
5. Division of Nephrology, Department of Internal Medicine, Pingtung Christian Hospital, Pingtung, Taiwan
6. Department of Health and Nutrition, Chia Nan University of Pharmacy and Science, Tainan, Taiwan