Lee, Kwang-Sig
,
Kim, Ho Yeon
Lee, Se Jin
Kwon, Sung Ok
Na, Sunghun
Hwang, Han Sung
Park, Mi Hye
Ahn, Ki Hoon
Article History
Received: 6 August 2020
Accepted: 22 February 2021
First Online: 2 March 2021
Declarations
:
: This study was approved by institutional review boards of forty-eight hospitals such as Korea University Anam Hospital (2019AN0433) participating in the study. Informed consent was waived by the institutional review boards. No administrative permissions or licenses were acquired by the authors to access the data used in this study.
: Not applicable.
: The authors declare that they have no competing interests.