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Authors
Qian, Guoying https://orcid.org/0000-0002-0307-4414
Zheng, Wen
Wang, Wei
Chen, Xi
Li, Linfang
Yang, Wanqi
Yu, Ailin
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Funding
Funding for this research was provided by:
Topics of Beijing Education Commission (19530050130)
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Article History
First Online: 10 December 2019
Compliance with Ethical Standards
:
: On behalf of all authors, the corresponding author states that there is no conflict of interest.
: 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.
: Informed consent was obtained from all individual participants included in the study.
