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RELATED DATA

: Supplementary Information

IDENTIFIERS

: Gunther Wittstock (ORCID)

: Gunther Wittstock (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 6 February 2016; Accepted 18 February 2016; Accepted Manuscript published 22 February 2016; Advance Article published 9 March 2016; Version of Record published 21 July 2016