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IDENTIFIERS

: Likun Pan (ORCID)

: Likun Pan (ResearcherID)

COPYRIGHT AND LICENSING

: The Partner Organisations have an exclusive publication licence for this journal

PEER REVIEW METHOD

: Single-blind

PUBLICATION HISTORY

: Received 30 October 2015; Accepted 8 January 2016; Accepted Manuscript published 12 January 2016; Advance Article published 28 January 2016; Version of Record published 12 April 2016