Received: 11 April 2020
Accepted: 13 January 2021
First Online: 20 January 2021
Change Date: 22 February 2021
Change Type: Correction
Change Details: A Correction to this paper has been published:
Change Details: https://doi.org/10.1186/s12913-021-06127-7
Ethics approval and consent to participate
: The manuscript is research paper based on public secondary data based on public platform cited in the text; for this reason, it does not contain primary data of clinical studies or patient data.
: Not applicable.
: None of the authors have any competing interests.