Funding for this research was provided by:
the Basic Science Research Program (2016R1D1A1B03934564)
Article History
Received: 30 September 2018
Accepted: 17 June 2019
First Online: 8 July 2019
Ethics approval and consent to participate
: This study was approved by the Institutional Review Board of Severance Hospital (IRB number 4–2016-0149), and this trial is registered with identifier, NCT03391206. All participants participated voluntarily and completed a written informed consent.
: Not Applicable.
: The authors declare that they have no competing interests.