Funding for this research was provided by:
Scientific and Innovative Action Plan of Shanghai (18411965600)
Article History
Received: 4 October 2019
Accepted: 7 November 2019
First Online: 19 November 2019
Compliance with ethical standards
:
: None of the authors has potential conflicts of interest. None of the authors has or has had any affiliation with any organization with a financial interest, direct or indirect, in the subject matter or materials discussed in the manuscript that may affect the conduct of reporting of the work submitted.
: All procedures performed in studies involving human participants were in accordance with the ethical standards of the institutional 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.