Funding for this research was provided by:
National Research Foundation of Korea (NRF-2018R1D1A1B07044843)
Received: 26 July 2020
Accepted: 15 June 2022
First Online: 27 June 2022
: This study was approved by the Institutional Review Board of Yonsei University College of Medicine (4–2018-0983) and reviewed by the HIRA Research Committee. The patient information in the HIRA database is anonymized to ensure confidentiality. Since the data was analyzed retrospectively, informed patient consent was waived.
: Not applicable.
: The authors declare that they have no competing interests.