Wu, Zhen-Yu
Han, Hyun Ho
Kim, Hee Jeong
Lee, Jong Won
Chung, Il Yong
Kim, Jisun
Lee, Sae Byul
Son, Byung-Ho
Eom, Jin Sup
Jung, Jae Ho
Kim, Sung- Bae
Gong, Gyungyub
Kim, Hak Hee
Ahn, Sei -Hyun
Ko, BeomSeok http://orcid.org/0000-0001-7831-7874
Article History
Received: 2 December 2020
Accepted: 21 January 2021
First Online: 19 March 2021
Compliance with ethical standards
:
: None.
: This study was approved by the institutional review board of Asan Medical Center, Seoul, Korea (No. 2020-0712). All procedures performed in studies involving human participants were in accordance with the ethical standards of the institutional and/or national research committee and with the 1964 Helsinki declaration and its later amendments or comparable ethical standards.
: Because of the retrospective nature of the study, the requirement for informed consent was waived, and the study was conducted with the exemption of consent under IRB deliberation as it used a platform that offers unidentified clinical information for research purposes.