Wang, Anran
Yang, Lin
Wen, Weimin
Zhang, Song
Hao, Dongmei
Khalid, Syed G.
Zheng, Dingchang
Funding for this research was provided by:
Beijing Municipal Commission of Education Foundation (PXM2016_014204_500079)
Beijing Talents Cultivation and Subsidize Youth Personal project (2014000020124G044)
Article History
Received: 12 September 2016
Accepted: 13 December 2016
First Online: 27 December 2016
Compliance with ethical standards
:
: The authors declare that they have no conflict of interest.