Lee, Gi Young
Park, Eun Jin
Kim, Youl-Ri http://orcid.org/0000-0002-5538-7180
Kwag, Kyung Hwa
Park, Jin Hong
An, So Hyun
Lee, Ji Hyun
Sim, Jeong Hun
Treasure, Janet
Funding for this research was provided by:
National Research Foundation of Korea (NRF-2014S1A5B8063466)
Article History
Received: 5 May 2017
Accepted: 23 August 2017
First Online: 4 September 2017
Compliance with ethical standards
:
: Financial support for this study was provided by the National Research Foundation of Korea (NRF) with a Grant funded by the Korean government (MSIP) (Grant #. NRF-2014S1A5B8063466). The funding sources had no involvement in the study design, collection, analysis, or interpretation of the data, writing the manuscript or the decision to submit the paper for publication.
: The authors declare no conflicts of interest.
: All procedures performed in this study were in accordance with the ethical standards of the national research committee and with the 1964 Helsinki declaration and its later amendments or comparable ethical measure.
: Informed consents were received from a parent or a guardian for each of the participants.