Funding for this research was provided by:
Ministry of Education (2017R1A2B4007166)
Seoul National University Hospital (0320160040)
Article History
Received: 2 December 2019
Accepted: 3 April 2020
First Online: 11 April 2020
Compliance with Ethical Standards
:
: The authors declare that they have no conflict of interest.
: The protocol of this study was approved by the Institutional Review Board at Seoul National University Hospital (No. H-0406-127-001). All procedures performed in this study were in accordance with the ethical standards of the institutional committee and with the Declaration of Helsinki.
: Informed consent was obtained from all individual participants included in the study.