Funding for this research was provided by:
Ministry of Land, Infrastructure and Transport (18IFIP-B059911-05)
Hankuk University of Foreign Studies (2018)
Article History
Accepted: 2 February 2019
First Online: 21 February 2019
Compliance with ethical standards
:
: The authors declare that they have no conflict of interest.
: All applicable international, national, and/or institutional guidelines for the care and use of animals were followed. This article does not contain any studies with human participants performed by any of the authors.