Text and Data Mining valid from 2018-02-15
Received: 7 August 2017
Accepted: 29 December 2017
First Online: 15 February 2018
Compliance with ethical standards
: Kemal Özgür Demiralp, Emine Şebnem Kurşun-Çakmak, Seval Bayrak, Nihat Akbulut, Cemal Atakan, and Kaan Orhan declare that they have no conflict of interest.
: All procedures followed were in accordance with the ethical standards of the responsible committee (institutional and national) and with the Helsinki Declaration of 1964 and later versions. Informed consent was not needed in this study.