Song, Yongming
Li, Guangxu http://orcid.org/0000-0001-5914-4525
Funding for this research was provided by:
National Natural Science Foundation of China (71601032)
Article History
First Online: 15 June 2018
Compliance with ethical standards
:
: The authors declare that they have no conflict of interest.
: This article does not contain any studies with human participants or animals performed by any of the authors.
: Informed consent was obtained from all individual participants included in the study.