Jeong, Su-Min
Shin, Dong Wook
Cho, Juhee
Article History
Received: 17 November 2019
Accepted: 7 February 2020
First Online: 19 February 2020
Compliance with ethical standards
: All participants provided written informed consent, and the NHANES protocol was approved by the Institutional Review Board of the National Center for Health Statistics.
: The authors declare that they have no conflict of interest.