Youk, Sungbin http://orcid.org/0000-0001-8859-2757
Park, Hee Sun http://orcid.org/0000-0002-5389-8673
Funding for this research was provided by:
School of Media and Communication, Korea University
Article History
Received: 25 February 2019
First Online: 1 July 2019
Compliance with ethical standards
:
: The authors declare that they have no conflict of interest.