Lu, Ting
Zhou, Dayan
Gao, Pan
Si, Liangyi
Xu, Qiang
Funding for this research was provided by:
Chongqing Characteristics of Specialist Construction Funds
Article History
Received: 9 May 2017
Accepted: 9 September 2017
First Online: 18 September 2017
Compliance with ethical standards
:
: The authors declare that they have no competing interests.