Yoon, Jee Hee
Hong, A Ram http://orcid.org/0000-0002-2494-9902
Choi, Wonsuk
Park, Ji Yong
Kim, Hee Kyung
Kang, Ho-Cheol
Article History
Received: 6 July 2020
Accepted: 23 September 2020
First Online: 1 October 2020
Compliance with Ethical Standards
:
: Jee Hee Yoon, A Ram Hong, Wonsuk Choi, Ji Yong Park, Hee Kyung Kim, and Ho-Cheol Kang declare that they have no conflicts of interest.
: The KNHANES surveys were reviewed and approved by the Institutional Review Board of the Korea Center for Disease Control and Prevention (IRB Nos. 2008-04EXP-01-C, 2009-01CON-03-2C, 2010-02CON-21, and 2011-02CON06-C).
: Written informed consents were obtained from all participants prior to survey enrollment. The study was conducted in accordance with the Declaration of Helsinki.