Liu, Huan
Song, Shuang
Wu, Wei
Mi, Weili
Shen, Chuan
Bai, Bixin
Wu, Yunfeng
Funding for this research was provided by:
key research and development plan in shaanxi province (2018ZDXM-NY-058)
111 Project from the Education Ministry of China (B07049)
Article History
Accepted: 7 January 2019
First Online: 15 January 2019
Compliance with ethical standards
:
: No conflict of interest exits in the submission of this manuscript, and manuscript is approved by all authors for publication. I would like to declare on behalf of my co-authors that the work described was original research that has not been published previously, and not under consideration for publication elsewhere, in whole or in part. All the authors listed have approved the manuscript that is enclosed.