Funding for this research was provided by:
Korea Institute of Planning and Evaluation for Technology in Food, Agriculture, Forestry and Fisheries (116032-3)
Received: 1 April 2019
Accepted: 24 June 2020
First Online: 9 July 2020
Ethics approval and consent to participate
: The study protocol was approved by the Institutional Review Board of Yonsei University, according to the Helsinki Declaration. (IRB No. 7001988–201808-SB-303).
: Not applicable.
: The author declare that they have no competing interests.