Park, Hyo-Eun
Song, Hye Young
Han, Kyungdo
Cho, Kyung-Hwan
Kim, Yang-Hyun
Article History
Received: 19 December 2017
Accepted: 2 January 2019
First Online: 9 January 2019
Ethics approval and consent to participate
: The KNHANES received annual deliberation and approval from the institutional review board of the Korea Centers for Disease Control and Prevention (2010-02CON-21-C 2011-02CON-06-C 2012-01EXP-01-2C), and all participants provide written consent.
: Not applicable
: The authors declare that they have no competing interests.
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