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RELATED DATA

: Supplementary Information

IDENTIFIERS

: José A. Gavira (ORCID)

: José A. Gavira (ResearcherID)

COPYRIGHT AND LICENSING

: The Royal Society of Chemistry has an exclusive publication licence for this journal

OPEN ACCESS: This article is freely available. This article is licensed under a Creative Commons Attribution Non Commercial 3.0 Unported Licence (CC BY-NC 3.0)

PUBLICATION HISTORY

: Received 30 April 2015; Accepted 8 June 2015; Accepted Manuscript published 8 June 2015; Advance Article published 25 June 2015; Version of Record published 20 October 2015