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Authors
Jung, Mi-Hyang
Yi, Sang-Wook
An, Sang Joon
Yi, Jee-Jeon
Ihm, Sang-Hyun
Han, Seongwoo
Ryu, Kyu-Hyung
Jung, Hae Ok
Youn, Ho-Joong
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Article History
Received: 8 March 2022
Accepted: 4 April 2022
First Online: 16 April 2022
Declarations
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: The current study was approved by the institutional review board of Catholic Kwandong University (IRB No: CKU-21-01-1803), and the requirement for informed consent was waived because anonymized data (provided by the NHIS following a strong confidentiality protocol) were used.
: Not applicable.
: The authors declare that they have no competing interests.
