Yoon, Haesung http://orcid.org/0000-0003-0581-8656
Kim, Jisoo http://orcid.org/0000-0002-3481-127X
Lim, Hyun Ji http://orcid.org/0000-0001-5537-2360
Lee, Mi-Jung http://orcid.org/0000-0003-3244-9171
Article History
Received: 15 April 2021
Accepted: 28 September 2021
First Online: 10 October 2021
Declarations
:
: Following the Declaration of Helsinki, the study was approved as a retrospective human study by the Institutional Review Board of Severance Hospital (No. 4-2020-1363). The informed consent of patient, parents, or guardians was waived. All methods were carried out in accordance with relevant guidelines and regulations.
: Not applicable.
: The authors have no competing interest to declare.