Qiao, Cheng http://orcid.org/0000-0002-0708-1064
Ou, Guo-qiang http://orcid.org/0000-0002-6654-3492
Pan, Hua-li http://orcid.org/0000-0001-6910-3647
Ouyang, Chao-jun http://orcid.org/0000-0003-4456-8485
Jia, Yang http://orcid.org/0000-0003-2341-628X
Article History
Received: 17 July 2017
Revised: 16 August 2018
Accepted: 5 September 2018
First Online: 11 October 2018