1. Institute of Traditional Medicine, School of Medicine, National Yang-Ming University, Taipei 112, Taiwan
2. National Research Institute of Chinese Medicine, Taipei 112, Taiwan
3. Institute of Clinical Medicine, School of Medicine, National Yang-Ming University, Taipei 112, Taiwan
4. Division of Urology, Department of Surgery, Taipei Veterans General Hospital, Taipei, Taiwan
5. Department of Education and Research, Taipei City Hospital, Taipei, Taiwan