Liu, Jingjing
Wang, Lifang
Shen, Yanbing
Liqiu, Su
Wang, Min
Funding for this research was provided by:
National Natural Science Foundation of China (21276196)
Key Project of Chinese Ministry of Education (213004A)
Tianjin Programs for Science and Technology Development (15ZCZDSY00510)
Article History
Received: 1 August 2017
Accepted: 19 January 2018
First Online: 5 February 2018
Compliance with Ethical Standards
:
: The authors declare that they have no competing interests.