Funding for this research was provided by:
Received: 6 March 2021
Accepted: 22 July 2021
First Online: 16 August 2021
: Ethical approval was not sought for the present study because this investigation includes a secondary data analysis of open data. This study used previously published data that is freely available and accessible online. All data is completely anonymous with no personal information being collected. There was no potential harm to participants and anonymity of participants is guaranteed.
: Not applicable.
: The authors declare that they have no competing interests.