Funding for this research was provided by:
National Research Foundation of Korea (2017R1C1B1010892)
Article History
Received: 29 January 2019
Revised: 8 March 2019
Accepted: 10 April 2019
First Online: 29 April 2019
Compliance with ethical standards
:
: The authors have no conflicts of interest to disclose, have full control of all primary data, and agree to allow the journal to review their data, if requested.
: The study protocol and consent form were reviewed and approved by the ethics committee of Ajou University Medical Center in compliance with the Declaration of Helsinki (AJIRB-SBR-SUR-17-122). All study participants provided written informed consent prior to their inclusion in the study.