**Author details**

Cheng Peng† , Liangyou Gu† , Luojia Yang, Baojun Wang, Qingbo Huang, Dan Shen, Songliang Du, Xu Zhang\* and Xin Ma\*

\*Address all correspondence to: urologist@foxmail.com and xzhang@foxmail.com

Department of Urology/State Key Laboratory of Kidney Diseases, Chinese PLA General Hospital/Chinese PLA Medical Academy, Beijing, P. R. China

† These authors contributed equally to this work.
