Correction to: BMC Musculoskelet Disord 22, 34 (2021)

https://doi.org/10.1186/s12891-020-03894-y

After the publication of the article [1] it came to our attention that the wrong versions of Funding was published. Please find below the correct version of Funding.

(Previous version)

Funding

The design, data collection and data analysis of the study and interpretation of data and writing of the manuscript were supported by National Natural Science Foundation of China: (H0607).

(Revised version)

Funding

The design, data collection and data analysis of the study and interpretation of data and writing of the manuscript were supported by National Natural Science Foundation of China: (81772367).

The original article [1] has been updated.