Affiliation: | 1.Department of Urology, Tsugaru General Hospital, Goshogawara, Japan ;2.Department of Urology, Gifu University Graduate School of Medicine, Gifu, Japan ;3.Department of Urology, Hakodate Municipal Hospital, Hakodate, Japan ;4.Department of Urology, Hirosaki National Hospital, Hirosaki, Japan ;5.Department of Urology, Aomori Prefectural Central Hospital, Aomori, Japan ;6.Department of Urology, Mutsu General Hospital, Mutsu, Japan ;7.Department of Urology, Oyokyo Kidney Research Institute, Aomori, Japan ;8.Department of Urology, Hirosaki University Graduate School of Medicine, 5 Zaifucho, Hirosaki, 036-8562, Japan ; |