Received: 27 July 2020
Accepted: 5 January 2021
First Online: 21 January 2021
Ethics approval and consent to participate
: This study was approved by the Korean Ministry of Food and Drug Safety (MFDS), and the Institutional Review Board of KIRAMS (IRB No.: KIRAMS 2017-09-006-020). All procedures were performed following the 1964 Declaration of Helsinki and its later amendments or comparable ethical standards. This clinical trial has been registered with the Clinical Research Information Service (ExternalRef removed), registration number KCT0002790. Informed consent was obtained from all individual participants included in the study.
: Not applicable.
: The authors declare that they have no competing interests.