Funding for this research was provided by:
the National Natural Science Foundation for Young Scholars of China (81200701)
Article History
Received: 4 November 2018
Revised: 31 January 2019
Accepted: 11 February 2019
First Online: 22 February 2019
Compliance with ethical standards
:
: The authors declare that they have no conflict of interest.
: All procedures performed in this study involving human participants were in accordance with the ethical standards of the Ethics Committee of Shanghai General Hospital affiliated to Shanghai Jiao Tong University 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.