1. Division of Nephrology, Taipei Tzu Chi Hospital, Buddhist Tzu Chi Medical Foundation, Hualien, Taiwan
2. School of Medicine, Tzu Chi University, Hualien, Taiwan
3. Cardiovascular Center, National Taiwan University Hospital, Hsinchu Branch, Hsinchu, Taiwan
4. Institute of Biomedical Engineering, National Tsing‐Hua University, Hsinchu, Taiwan
5. Institutes of Physiology and Clinical Medicine, National Yang‐Ming University, Taipei, Taiwan
6. Division of Nephrology, Department of Medicine, Taipei Veterans General Hospital, Taipei, Taiwan