Text and Data Mining valid from 2018-01-24
Received: 16 November 2017
Revised: 22 December 2017
Accepted: 5 January 2018
First Online: 24 January 2018
Compliance with ethical guidelines
: S. Kardeş, M. Karagülle, İ. Geçmen, T. Adıgüzel, H. Yücesoy and M.Z. Karagülle declare that they have no competing interests.
: All procedures performed in studies involving human participants were in accordance with the ethical standards of the Ethics Committee of the Istanbul Faculty of Medicine and with the 1964 Helsinki declaration and its later amendments or comparable ethical standards. The Ethics Committee of the Istanbul Faculty of Medicine waived the informed consent requirement because this was a retrospective study.