Choi, Yoon-Joo
Lee, Weon-Young
Article History
Received: 8 August 2022
Accepted: 20 January 2023
First Online: 26 January 2023
Declarations
:
: This study performed an analysis of secondary administrative data. Approval was granted by the Ethics Committee of Chung-Ang University (Date: Nov. 24, 2020/No.: 1041078–202011-BRHR-332–01).
: This study analyzed the secondary administrative data of the National Health Insurance Service and did not involve human subjects. The National Health Insurance Service masked personally identifiable information and provided the data to the researchers.
: The authors declare no competing interests.