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Authors
Lee, Bo Ram
Jung, Eui Dae
Park, Ji Sun
Nam, Yun Seok
Min, Sa Hoon
Kim, Byeong-Su
Lee, Kyung-Min
Jeong, Jong-Ryul
Friend, Richard H.
Kim, Ji-Seon
Kim, Sang Ouk
Song, Myoung Hoon
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Article History
Received: 6 March 2014
Accepted: 29 July 2014
First Online: 10 September 2014
Competing interests
: The authors declare no competing financial interests.
