1. Department of Internal Medicine, National Taiwan University Hospital and College of Medicine, National Taiwan University , Taipei 100 , Taiwan
2. Taipei Tzu Chi Hospital, Buddhist Tzu Chi Medical Foundation , Taipei , Taiwan
3. Department of Imaging Medicine, National Taiwan University Hospital and College of Medicine, National Taiwan University , Taipei 100 , Taiwan
4. Department of Internal Medicine, National Taiwan University Hospital , Hsin-Chu , Taiwan
5. Department of Urology, National Taiwan University Hospital and College of Medicine, National Taiwan University , Taipei 100 , Taiwan
6. Department of Nuclear Medicine, National Taiwan University Hospital and College of Medicine, National Taiwan University , Taipei 100 , Taiwan
7. Far Eastern Polyclinic of Far Eastern Medical Foundation , Taipei City , Taiwan