Funding for this research was provided by:
Gachon University (2016-0066)
Ottogi Foundation
Text and Data Mining valid from 2021-02-05
Version of Record valid from 2021-02-05
Article History
Received: 5 June 2020
Revised: 4 November 2020
Accepted: 17 December 2020
First Online: 5 February 2021
Compliance with ethical standards
:
: The authors declare no conflicts of interest.