1. Department of Urology, Qilu Hospital of Shandong University, Jinan, China
2. Department of Urology, Qilu Hospital of Shandong University (Qingdao), Qingdao, China
3. Department of Urology, The Second Hospital of Shandong University, Jinan, China
4. Department of Urology, The First Affiliated Hospital of Shandong First Medical University, Jinan, China
5. Department of Urology, Shandong Provincial Hospital, Jinan, China