Funding for this research was provided by:
Hallym University Research Fund 2021 (HURF-2021-22)
Ministry of Food and Drug Safety in 2022 (22213MFDS486)
Received: 5 April 2022
Accepted: 5 May 2022
First Online: 23 May 2022
: This study was approved by the Institutional Review Board (IRB) of Kangdong Sacred Hospital (IRB number 2019-03-008) and Ewha Womans University Mokdong Hospital (IRB number 2020-09-026). The IRB waived written informed consent and approved this study. The other eight hospitals are affiliated with the Research Border Free Zone of Korea CDM data network, which recognizes IRB approval of the research organizing center and waives the need for individual IRB approval. This study complied with the principles of the Declaration of Helsinki.
: The manuscript was approved by all authors for publication.
: The authors declare that there are no relationships or activities that might bias or be perceived to bias their work.