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Authors
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Funding
Funding for this research was provided by:
National Scientific Foundation of China (91859202, 81771901)
Shanghai Municipal Health Commission (20194Y0104)
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Article History
Received: 14 February 2020
Revised: 29 April 2020
Accepted: 4 June 2020
First Online: 26 June 2020
Compliance with ethical standards
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: The scientific guarantor of this publication is Prof. Xiaofeng Tao.
: The authors of this manuscript declare no relationships with any companies whose products or services may be related to the subject matter of the article.
: One of the authors has significant statistical expertise.
: Written informed consent was not required for this study because all patients’ data included in this study are publicly and freely available for scientific purposes.
: Institutional review board approval was not required because all patients’ data included in this study are publicly and freely available for scientific purposes.
: • retrospective• diagnostic or prognostic study• performed at one institution
