Koo, Soo Kweon http://orcid.org/0000-0002-7541-1985
Kwon, Soon Bok
Koh, Tae Kyung
Ji, Chang Lok
Park, Geun Hyung
Lee, Ho Byung
Article History
Received: 25 June 2020
Accepted: 31 July 2020
First Online: 4 August 2020
Compliance with ethical standards
:
: We have no potential 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: Informed consent was obtained from all individual participants included in the study. The study was approved by the Institutional Review Board of Busan Saint Mary’s medical center (Approval No. BSM-2017-06).