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Authors
He, Guohua
Li, Chenglong
Wang, Shengfeng
Wang, Haibo
Ding, Jie
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Article History
Received: 20 October 2021
Revised: 6 January 2022
Accepted: 27 January 2022
First Online: 28 February 2022
Declarations
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: This retrospective study involving human participants was in accordance with the ethical standards of the institutional and national research committee and with the 1964 Helsinki Declaration and its later amendments or comparable ethical standards. The study protocol was reviewed and approved by the Ethics Committee Board of Peking University First Hospital (approval number: 2021 [009]).
: This research study was conducted retrospectively from data obtained for clinical and quality monitoring purposes. The use of this de-identified dataset in this study was approved by the Ethics Committee Board of Peking University First Hospital with a waiver of informed consent.
: This retrospective study used a de-identified dataset. Consent to publish from participants could not be applied in this study.
: The authors declare no competing interests.
: Software: SAS software 9.4 (SAS Inc., Cary, NC, USA), RRID: SCR_008567.
