1 Division of Urology, Department of Surgery, Kaohsiung Veterans General Hospital, Kaohsiung, Taiwan.
2 Division of Urology, Department of Surgery, Kaohsiung Veterans General Hospital, Kaohsiung, Taiwan; School of Medicine, National Yang-Ming University, Taipei, Taiwan.
3 Division of Urology, Department of Surgery, Kaohsiung Veterans General Hospital, Kaohsiung, Taiwan; Institute of Clinical Medicine, National Yang-Ming University, Taipei, 112, Taiwan; Institute of Clinical Medicine, National Yang Ming Chiao Tung University, Taipei, 112, Taiwan; Shu-Zen Junior College of Medicine and Management, Kaohsiung, Taiwan; School of Medicine, National Yang-Ming University, Taipei, Taiwan. Electronic address: wtkuo0817@vghks.gov.tw.