Document is current

Article History

Received: 14 April 2021

Accepted: 1 July 2021

First Online: 5 July 2021

Declarations

:

: As a population-based cohort study, the study protocol was approved by the Institutional Review Board of the Seoul National University Bundang Hospital (approval number: X-2001-586-902) and the Health Insurance Review and Assessment Service. The requirement for informed consent was waived because the data analyses were performed retrospectively using anonymized data derived from the South Korean NHIS database.

: Not applicable.

: The authors declare that they have no competing interests.