Correction to: BMC Urology (2022) 22:173 https://doi.org/10.1186/s12894-022-01129-x

Following publication of the original article [1], the authors identified that the article note about equal contribution was missing.

The first and second author, Zhengchao Liu and Zhipeng Chen, contributed equally to the article.

It has been added in this correction.

The original article has been updated.