L-C Huang1, C-C Wu2,3, Y-N Kang4,5,6. 1. Department of Urology, En Chu Kong Hospital, New Taipei City, Taiwan. 2. Department of Urology, Taipei Medical University Hospital, No. 252 Wu Hsing Street, Taipei, 110, Taiwan. ccwu@tmu.edu.tw. 3. Department of Education and Humanities in Medicine, School of Medicine, College of Medicine, Taipei Medical University, Taipei, Taiwan. ccwu@tmu.edu.tw. 4. Evidence-Based Medicine Center, Wan Fang Hospital, Taipei Medical University No, 111, Section 3, Xing-Long Road, Taipei, 11696, Taiwan. academicnono@gmail.com. 5. Cochrane Taiwan, Taipei Medical University, Taipei, Taiwan. academicnono@gmail.com. 6. Institute of Health Policy and Management, College of Public Health, National Taiwan University, Taipei, Taiwan. academicnono@gmail.com.