Correction to: BMC Surg (2021) 21:271 https://doi.org/10.1186/s12893-021-01268-2

Following the publication of the original article [1], we have been notified that Jianfeng Shi was incorrectly listed twice in the authorship list, once in the second position and incorrectly spelled as Jinfeng Shi, and once in the last position. The incorrect second position has been removed.

The original article has been corrected.