Jung, Hanna
Cho, Joon Yong
Seok, Yangki
Lee, Youngok
Article History
Received: 4 April 2021
Accepted: 24 May 2021
First Online: 2 June 2021
Declarations
:
: This study was approved by the Institutional Review Board of Kyungpook National University Chilgok Hospital (IRB File No. 2020-09-019). Informed consent is waived for this retrospective study by the Institutional Review Board of Kyungpook National University Chilgok Hospital. We confirm all methods were performed in accordance with the relevant guidelines and regulations.
: Not applicable.
: The authors declare that they have no competing interests.