1 Department of Urology, First Hospital of China Medical University, 155 North Nanjing Street, Heping, 110001, Shenyang, Liaoning, China.
2 Department of Urology, First Hospital of China Medical University, 155 North Nanjing Street, Heping, 110001, Shenyang, Liaoning, China. zhezhangcmu@qq.com.
3 Department of Urology, First Hospital of China Medical University, 155 North Nanjing Street, Heping, 110001, Shenyang, Liaoning, China. kongchuize_cmu@sina.cn.