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Authors
Liu, Shu-yan
Yuan, Dai
Sun, Rui-Jie
Zhu, Jing-jing
Shan, Ning-ning https://orcid.org/0000-0001-6521-231X
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Article History
Accepted: 5 October 2020
First Online: 12 October 2020
Compliance with ethical standards
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: The authors declare no competing interests.
: Informed consent was obtained from each participating patient and/or legal guardian. Ethical approval for the study was obtained from the Medical Ethical Committee of Shandong Provincial Hospital Affiliated to Shandong University and Shandong Provincial Hospital Affiliated to Shandong First Medical University.
