Funding for this research was provided by:
Korea Food Research Institute (E0170601-03)
World Institute of Kimchi (KE2001-2)
National Research Foundation of Korea (2018R1D1A1A09082921)
Received: 12 March 2020
Accepted: 17 July 2020
First Online: 4 August 2020
Ethics approval and consent to participate
: The study protocol was approved by the Institutional Review Board (IRB) of Chung-Ang University Hospital (IRB File No. 1750-002-281) and was compliant with all relevant ethical regulations. Written informed consent was obtained from all participants.
: Written informed consent was obtained from all participants.
: The authors declare that they have no competing interests.