Received: 21 May 2020
Accepted: 16 July 2020
First Online: 29 July 2020
Change Date: 29 May 2021
Change Type: Correction
Change Details: A Correction to this paper has been published:
Change Details: https://doi.org/10.1186/S13018-021-02491-6
Ethics approval and consent to participate
: This study dealt with published data only, no ethical approval was needed.
: Not applicable.
: The authors declare that they have no competing interests.