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Article History

First Online: 22 August 2018

Compliance with Ethical Standards

:

: Özlem Öztürk and Aysel Topan declare that they have no conflict of interest.

: This research was approved by the Ethical Committee of Karabük University with the issue 16, documentation number 2014/08 dated December 29, 2014. 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.

: This article does not contain any studies with animals performed by any of the authors.

: Informed consent was obtained from all individual participants included in the study.