Document is current

Article History

Received: 30 September 2022

Accepted: 29 April 2023

First Online: 24 May 2023

Competing interests

: The author declares no competing interests.

: At the field sites, the researcher followed all health status checks and social distancing rules established by the South Korean government.

: Ethical approval was obtained for all protocols from the Seoul National University Institutional Review Board to confirm that this study met national and international human research guidelines in accordance with the Declaration of Helsinki and its later amendments or comparable ethical standards (IRB No. 2108/002-008; approved on 3 August 2021).

: Informed consent of all participants was obtained before any research procedures started.