1. Department of Urology Key Laboratory of Urological Diseases in Gansu Province, Gansu Nephro‐Urological Clinical Center The Second Hospital of Lanzhou University Lanzhou China
2. Xi'an Central Hospital Xi'an Jiaotong University Xi'an China
3. Gansu Provincial Hospital Lanzhou China
4. Department of Urology University of Texas Health Science Center at San Antonio San Antonio Texas USA