Hei, Yongqiang
Zhang, Cong
Song, Weiting
Kou, Yanchun
Funding for this research was provided by:
National Natural Science Foundation of China (61201135)
Shaanxi Natural Science Foundation (2015JQ6245)
Fundamental Research Funds for the Central Universities (7214569601)
111 Project (B08038)
Article History
First Online: 16 July 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.