Hwang, Eun Jeong http://orcid.org/0000-0001-9640-2140
Sim, In Ok http://orcid.org/0000-0001-8464-2542
Article History
Received: 12 February 2021
Accepted: 26 August 2021
First Online: 4 September 2021
Declarations
:
: The study was approved by the Institutional Review Board of Sehan University, Jeollanam-do, Republic of Korea (approval number: 2019–29; data of approval: 18/03/2019). The current analysis is based on its database, owned by the Korea Disease Control and Prevention Agency (KDCA). The study was conducted in compliance with the Declaration of Helsinki. Written informed consent was obtained from all participants, and their anonymity was preserved.
: Not applicable.
: The authors declare that they have no competing interests.