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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 3 February 2015; Accepted 3 March 2015; Accepted Manuscript published 3 March 2015; Advance Article published 19 March 2015; Version of Record published 9 April 2015