Kim, Young-Kyun
Kim, So-Hyun
Choi, Tae-Hyun
Yen, Edwin H.
Zou, Bingshuang
Shin, Yonsoo
Lee, Nam-Ki http://orcid.org/0000-0003-1505-2551
Article History
Received: 15 May 2020
Accepted: 8 January 2021
First Online: 21 January 2021
Compliance with ethical standards
:
: The authors declare that they have no conflict of interest.
: All procedures performed in studies involving human participants were reviewed and approved by the institutional review board and in accordance with the 1964 Helsinki Declaration and its later amendments or comparable ethical standards.
: For this type of retrospective, non-interventional clinical study, formal consent is not required.