1 Department of Surgery, Taipei Tzuchi Hospital, Buddhist Tzu Chi Medical Foundation, Taipei, Taiwan; Department of Urology, Tzu Chi University, Medical College, Hualien, Taiwan.
2 Glickman Urologic and Kidney Institute, Cleveland Clinic, Cleveland, OH, USA; Cleveland Clinic Lerner College of Medicine, Case Western Reserve University, Cleveland, OH, USA. Electronic address: jeffchuef@gmail.com.