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Article History

Received: 22 April 2018

Revised: 11 June 2018

Accepted: 18 June 2018

First Online: 21 June 2018

Compliance with Ethical Standards

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: We declare that this manuscript is original, it has not been published anywhere before and is not currently being considered for publication elsewhere. We also confirm that the authors do not have any conflict of interest associated with publication of this work, no significant financial support/funding for this work has been received to influenced the outcome. The manuscript is read, approved and consent is given by all the authors. We give our permission to reproduce any material of the article.

: All procedures performed in studies involving human participants were in accordance with the ethical standards of the institutional and/or national research committee and with the 1964 Helsinki declaration and its later amendments or comparable ethical standards.

: Informed consent was obtained from all individual participants included in the study. This article does not contain any studies with animals performed by any of the authors.