1. Graduate Institute of Clinical Medicine, College of Medicine, Taipei Medical University, Taipei, Taiwan
2. Department of Urology, National Taiwan University Hospital, College of Medicine, National Taiwan University, Taipei, Taiwan
3. Department of Pathology, College of Medicine, Taipei Medical University, Taipei, Taiwan
4. Department of Public Health, School of Medicine, College of Medicine, Taipei Medical University, Taipei, Taiwan
5. School of Public Health, College of Public Health and Nutrition, Taipei Medical University, Taipei, Taiwan
6. Department of Urology, Taipei Medical University-Shuang Ho Hospital, Taipei, Taiwan