Funding for this research was provided by:
National Research Foundation of Korea (NRF-2014R1A1A1005112)
Received: 6 August 2018
Accepted: 29 November 2018
First Online: 21 December 2018
: This study was approved by the Institutional Animal Care and Use Committee of Chonbuk National University (# CBNU-2018-063).
: The authors declare that they have no competing interests.
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