1. Department of Urology, Wan Fang Hospital, Taipei Medical University, Taipei, Taiwan
2. School of Medicine, College of Medicine, Taipei Medical University, Taipei, Taiwan
3. School of Nursing, College of Nursing, Taipei Medical University, Taipei, Taiwan
4. Department of Anesthesiology, Taipei Tzu Chi Hospital, Taipei, Taiwan
5. School of Medicine, College of Medicine, Tzu Chi University, Hualien, Taiwan
6. Department of Anesthesiology, Wan Fang Hospital, Taipei Medical University, Taipei, Taiwan
7. Graduate Institute of Clinical Medicine, College of Medicine, Taipei Medical University, Taipei, Taiwan