Erratum to: Int Urol Nephrol (2015) 47:927–935 DOI 10.1007/s11255-015-0978-0

In the original publication, the second affiliation has been published with an error, and the first two affiliations should be swapped. The corrected and reordered first two affiliations are given below:

1School of Rehabilitation Medicine, Capital Medical University, Beijing, China.

2Department of Urology, China Rehabilitation Research Centre, No 10. Jiaomen Beilu, Fengtai District, Beijing 100068, China.