Updates are available Correction dated 2021-03-05
Click to view Correction: https://doi.org/10.1186/S12886-021-01890-X
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Authors
Kim, Kang Yoon
Chung, Byunghoon
Kim, Eung Kweon
Seo, Kyoung Yul
Jun, Ikhyun
Kim, Tae-im
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License Information
Text and Data Mining valid from 2021-02-15
Version of Record valid from 2021-02-15
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More Information
Article History
Received: 10 December 2020
Accepted: 27 January 2021
First Online: 15 February 2021
Change Date: 5 March 2021
Change Type: Correction
Change Details: A Correction to this paper has been published:
Change Details: https://doi.org/10.1186/S12886-021-01890-X
Ethics approval and consent to participate
: This study was approved by the Institutional Review Board of Severance Hospital (IRB No 1–2016-0027) by which the requirement for informed consent was waived because of the retrospective nature of this study.
: Not applicable.
: The authors declare that the research was conducted in the absence of any commercial or financial relationships that could be construed as potential conflicts of interest.
