Funding for this research was provided by:
Brain Korea 21 Plus program, National research foundation of Korea (21B20151813119)
Article History
Accepted: 31 May 2018
First Online: 4 June 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.” The study was approved by Kyongpook National University Hospital Institutional Review Board.
: Informed consent was obtained from all individual participants included in the study.