Lee, Yoonjoo http://orcid.org/0000-0002-2697-3690
Article History
First Online: 12 April 2019
Compliance with Ethical Standards
:
: The author declares that the author has 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.
: Informed consent was obtained from all individual participants included in the study.