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COPYRIGHT AND LICENSING

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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)

PEER REVIEW METHOD

: Single-blind

PUBLICATION HISTORY

: Received 28 July 2014; Accepted 8 September 2014; Accepted Manuscript published 10 September 2014; Advance Article published 1 October 2014; Version of Record published 8 December 2014