Chun, Byung Hee
Lee, Se Hee
Jeon, Hye Hee
Kim, Dong-Woon
Jeon, Che Ok
Funding for this research was provided by:
Rural Development Administration
Ministry of Science, ICT and Future Planning
Article History
Received: 11 May 2017
Accepted: 12 July 2017
First Online: 17 July 2017
Competing interests
: The authors declare that they have no competing interests.
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