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Authors
Yang, Jie
Ortega-Hernández, Javier http://orcid.org/0000-0002-6801-7373
Legg, David A. http://orcid.org/0000-0003-0635-7310
Lan, Tian
Hou, Jin-bo
Zhang, Xi-guang http://orcid.org/0000-0003-4697-0531
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Article History
Received: 24 September 2017
Accepted: 26 December 2017
First Online: 1 February 2018
Competing interests
: The authors declare no competing financial interests.
