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Article History

Received: 4 January 2017

Accepted: 17 July 2017

First Online: 2 August 2017

Compliance with Ethical Standards

:

: All of the authors declare that they do not have any conflict of interest to declare.

: 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.