Shin, Myung-Seop
Kim, Yun-Gon
Shin, Yoo Jin
Ko, Byoung Joon
Kim, Sungtae
Kim, Hyun-Duck http://orcid.org/0000-0003-3905-6952
Funding for this research was provided by:
Ministry of Science and ICT (NRF-2017M3A9B6062984)
National Research Foundation (NRF) funded by the Ministry of Science and ICT (NRF-2017M3A9B6062984)
Article History
Received: 15 October 2018
Accepted: 5 December 2018
First Online: 15 December 2018
Compliance with ethical standards
:
: The authors declare that they have no conflict of interest.
: All procedures performed in studies involving human participants were in accordance with the ethical standards of the institutional and/or national research committee and with the 1964 Helsinki declaration and its later amendments or comparable ethical standards. This cross-sectional study was approved by institutional review board (SNU SOD N0: S-D20170045).
: Informed consent was obtained from all individual participants included in the study.