Park, Jiyun
Kim, Gyuri
Kim, Hasung
Lee, Jungkuk
Lee, You-Bin
Jin, Sang-Man
Hur, Kyu Yeon
Kim, Jae Hyeon http://orcid.org/0000-0001-5001-963X
Article History
Received: 21 June 2021
Accepted: 28 August 2021
First Online: 28 September 2021
Declarations
:
: The Institutional Review Board (IRB) of Samsung Medical Center approved this study (approval no. SMC 2019-11-051). An informed consent exemption was granted by the IRB because all data provided by the NHIS to researchers were de-identified.
: Not applicable.
: The authors have no competing interests to declare.