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Authors
Yu, Sun-Kyoung
Lee, Myoung-Hwa
Jeon, Yong Hyun
Chung, Yoon Young
Kim, Heung-Joong
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Funding
Funding for this research was provided by:
National Research Foundation of Korea (2013R1A1A2059176)
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Article History
Received: 18 May 2015
Accepted: 3 August 2015
First Online: 14 August 2015
Compliance with ethical standards
:
: The authors declare that they have no conflict of interest.
