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Article History

Received: 19 May 2017

Accepted: 26 January 2018

First Online: 17 February 2018

Ethics approval and consent to participate

: Ethical approval was gained from the Solihull NRES Committee (Protocol number 13WM0331). All participants provided informed written consent to partake in the study. Research was performed in accordance with the Declaration of Helsinki.

: Participants provided consent for their research data to be disseminated anonymously in a scientific journal.

: The funding body were involved with the conception of the study question, but were not responsible for the study design, the data collection or the data analysis.None of the authors have any financial interests in the research or in Cereal Partners Worldwide, except Frank Thielecke who was an employee of CPW when this study was initiated and works now as an independent consultant.

: Springer Nature remains neutral with regard to jurisdictional claims in published maps and institutional affiliations.