[1] Dalin Tzu Chi Hosp, Buddhist Tzu Chi Med Fdn, Dept Urol, Chiayi 622, Taiwan
[2] Natl Taiwan Univ, Natl Taiwan Univ Hosp, Coll Med, Dept Urol, Taipei 110, Taiwan
[3] China Med Univ, An Nan Hosp, Dept Urol, Tainan 833, Taiwan
[4] Feng Shan Lee Chia Wen Urol Clin, Kaohsiung 800, Taiwan
[5] Chang Gung Mem Hosp, Dept Surg, Div Urol, Linkou Branch, Taoyuan 333, Taiwan
[6] Kaohsiung Municipal Siaogang Hosp, Dept Urol, Kaohsiung 812, Taiwan
[7] Kaohsiung Med Univ, Coll Med, Dept Urol, Kaohsiung 807, Taiwan
[8] Kaohsiung Med Univ Hosp, Dept Urol, Kaohsiung 813031, Taiwan
[9] Kaohsiung Med Univ, Grad Inst Clin Med, Coll Med, Kaohsiung 807, Taiwan
[10] En Chu Kong Hosp, Dept Urol, New Taipei 237, Taiwan
[11] Chung Yuan Christian Univ, Dept Biomed Engn, Chungli 320, Taiwan
[12] Buddhist Tzu Chi Univ, Hualien Tzu Chi Hosp, Buddhist Tzu Chi Med Fdn, Dept Urol, Hualien 970, Taiwan