Ma, Ke http://orcid.org/0000-0001-8240-4786
Hommel, Bernhard
Funding for this research was provided by:
Fundamental Research Funds for the Central Universities (SWU116055)
National Natural Science Foundation of China (31700942)
China Postdoctoral Science Foundation (2017M622936)
Chongqing Postdoctoral Science Foundation (Xm2017066)
Article History
Received: 21 July 2017
Accepted: 3 January 2018
First Online: 10 January 2018
Compliance with ethical standards
:
: The authors declared that they had no conflicts of interest with respect to their authorship or the publication of this article.
: All procedures performed in this study were in accordance with the ethical standards of ethics committee in Southwest University and with the 1964 Helsinki declaration and its later amendments. Informed consents were obtained from all participants included in this study.