Funding for this research was provided by:
National Science Foundation for Scientists of China (81871352)
National Science Foundation for Young Scientists of China (81701689)
Article History
Received: 28 February 2020
Revised: 17 April 2020
Accepted: 28 April 2020
First Online: 12 May 2020
Compliance with ethical standards
:
: The scientific guarantor of this publication is Yun Bian.
: 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.
: No complex statistical methods were necessary for this paper.
: Written informed consent was waived by the Institutional Review Board.
: Institutional Review Board approval was obtained by the Changhai hospital and Huoshenshan Hospital.
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