1. Institute of Medical Sciences, Tzu Chi University, Hualien, Taiwan.
2. Center for Healthy Longevity, Hualien Tzu Chi Hospital, Buddhist Tzu Chi Medical Foundation, Hualien, Taiwan.
3. Department of Surgery, Hualien Tzu Chi Hospital, Buddhist Tzu Chi Medical Foundation, Hualien, Taiwan.
4. Department of Surgery, School of Medicine, Tzu Chi University, Hualien, Taiwan.
5. Center for Aging and Health, Hualien Tzu Chi Hospital, Buddhist Tzu Chi Medical Foundation, Hualien, Taiwan.
6. School of Medicine, Tzu Chi University, Hualien, Taiwan.
7. Department of Family Medicine, Hualien Tzu Chi Hospital, Buddhist Tzu Chi Medical Foundation, Hualien, Taiwan.
8. Department of Medical Research, Hualien Tzu Chi Hospital, Buddhist Tzu Chi Medical Foundation, Hualien, Taiwan.