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Authors
Jang, Mi-Ae
Kim, Young-Eun
Kim, Sun Kyung
Lee, Myoung-Keun
Kim, Jong-Won
Ki, Chang-Seok https://orcid.org/0000-0001-7679-8731
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Article History
Received: 17 November 2015
Revised: 2 March 2016
Accepted: 17 March 2016
First Online: 14 April 2016
Competing interests
: The authors declare no conflict of interest.
Free to read: This content has been made available to all.
