Jung, Yun-Sook
Jo, Hwa-Young
Ahn, Jae-Hyun
Kim, Ji Young
Jin, Myoung-Uk
Cho, Min-Jeong
Choi, Youn-Hee
Song, Keun-Bae
Article History
Received: 7 August 2017
Accepted: 1 October 2018
First Online: 17 October 2018
Compliance with ethical standards
:
: The authors declare that they have no conflict of interest.
: The study has been approved by the appropriate ethics committee (Daegu, South Korea; approval no. 2016-0093). 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 Declaration of Helsinki and its later amendments or comparable ethical standards.
: Informed consent was obtained from all individual participants included in the study.