Received: 9 July 2020
Accepted: 28 September 2020
First Online: 7 October 2020
Change Date: 18 October 2022
Change Type: Correction
Change Details: A Correction to this paper has been published:
Change Details: https://doi.org/10.1186/s12909-022-03786-w
Ethics approval and consent to participate
: The study was approved by the institutional review board of the Chang-Gung Memorial hospital, Taiwan (IRB no. 202000945B0).
: Not applicable.
: The authors declare that they have no competing interests.