Chen, Cheng
Li, Qiang
Fu, Rongtao
Wang, Jian
Xiong, Chuan
Fan, Zhonghan
Hu, Rongping
Zhang, Hong
Lu, Daihua
Funding for this research was provided by:
Foundation Program of the Financial
Traction project of Chengdu industrial upgrading (2015-NY02-00063-NC, 2015-NY02-00063-NC)
Article History
Received: 19 July 2019
Accepted: 17 October 2019
First Online: 25 November 2019
Competing interests
: The authors declare no competing interests.