Choi, Yoon Jin
Lee, Dong Ho http://orcid.org/0000-0002-6376-410X
Han, Kyung-Do
Shin, Cheol Min
Kim, Nayoung
Funding for this research was provided by:
Ministry of Science ICT and Future Planning (2011-0030001)
Article History
Received: 13 March 2018
Accepted: 29 August 2018
First Online: 8 September 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 research committee and with the 1964 Helsinki declaration and its later amendments or comparable ethical standards.
: For this type of study formal consent is not required.