Funding for this research was provided by:
National Research Foundation of Korea (2019R1A2C1086767)
National Research Foundation of Korea (2021R1I1A1A01046931)
Article History
Received: 2 June 2022
Revised: 18 June 2022
Accepted: 20 June 2022
First Online: 20 July 2022
Declarations
:
: The authors declare no conflict of interest.
: The study was conducted according to the guidelines of the Declaration of Helsinki, and approved by the Institutional Review Board (IRB) of the Ewha Womans University Medical Center institutional review board (ECT-11-53-02). Informed written consent forms were collected from all patients and/or their legal parents/guardians.