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. 2018 Sep 10;14(2):80–85. doi: 10.17925/EE.2018.14.2.80

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© The Author(s) 2018

This article is published under the Creative Commons Attribution Noncommercial License, which permits any non-commercial use, distribution, adaptation and reproduction provided the original author(s) and source are given appropriate credit. © The Authors 2018.

Review Process: Double-blind peer review.

Compliance with Ethics: This study did not involve any studies with human or animal subjects performed by any of the authors.

Authorship: All named authors meet the criteria of the International Committee of Medical Journal Editors for authorship for this manuscript, take responsibility for the integrity of the work as a whole and have given final approval for the version to be published.

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