Hwang, Sang Hyun
Jung, Minkyu
Jeong, Yong Hyu
Jo, KwanHyeong
Kim, Soyoung
Wang, Jiyoung
Cho, Arthur https://orcid.org/0000-0001-8670-2473
Funding for this research was provided by:
National Research Foundation of Korea (NRF-2016R1D1A1B01014677)
Article History
Received: 24 September 2020
Accepted: 15 January 2021
First Online: 28 January 2021
Ethics approval and consent to participate
: The institutional review board of our university approved this retrospective study, and the requirement to obtain informed consent was waived (IRB approved no. 4-2016-0914).
: Not applicable
: The authors declare that they have no competing interests.