Kim, Kisok http://orcid.org/0000-0002-7134-3612
Park, Hyejin
Funding for this research was provided by:
National Research Foundation of Korea (NRF-2019R1F1A1057499, NRF-2018R1D1A1B07050009)
Article History
Received: 29 April 2021
Revised: 29 April 2021
Accepted: 9 August 2021
First Online: 14 August 2021
Declarations
:
: The authors declare that they have no conflicts of interest.
: The study protocol was approved by the Korean Ministry of Health and Welfare and was conducted in accordance with the Ethical Principles for Medical Research Involving Human Subjects, as defined by the Helsinki Declaration. The KNHANES received approval from the KNHANES Institutional Review Board (IRB approval # 2010-02CON-21-C, 2011-02CON-06-C, 2012-01EXP-01-2C, and 2013-07CON-03-4C).
: All study participants provided written informed consent.
: This study received the written consent for publication.