Kim, Jin Woo
Lee, You Jin
Ha, Yun-Sok
Lee, Jun Nyung
Kim, Hyun Tae
Chun, So Young
Kim, Bum Soo http://orcid.org/0000-0002-4873-3049
Funding for this research was provided by:
National Research Foundation of Korea (2019R1F1A1044473)
National Research Foundation of Korea (2018R1C1B5040264, 2019R1A2C1004046, 2019R1H1A1079839, 2020R1I1A3071568)
Article History
Received: 25 February 2020
Accepted: 20 August 2020
First Online: 27 August 2020
Ethics approval and consent to participate
: This research was approved by the Institutional Review Board of the Kyungpook National University Hospital (approval number: KNUH 2019–05-001). This study was performed in accordance with the ethical standards laid down in the 1964 Declaration of Helsinki and its later amendments. This retrospective study was performed after approval from the institutional review board. Our ethics board waived the need for informed consent for this retrospective study.
: Not applicable.
: The authors declare that they have no competing interests.