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Authors
Park, Jeong Sun
Kim, Min Jee
Jeong, Su Yeon
Kim, Sung Soo
Kim, Iksoo
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Funding
Funding for this research was provided by:
Chonnam National University (2013)
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Article History
Received: 27 January 2016
Revised: 20 February 2016
Accepted: 24 February 2016
First Online: 7 March 2016
Compliance with ethical standards
: The authors declare that they have no conflict of interest. For this type of study formal consent is not required. This article does not contain any studies with human participants performed by any of the authors. Informed consent was obtained from all individual participants included in the study.
Free to read: This content has been made available to all.
