Article History
Received: 12 June 2018
Accepted: 22 November 2018
First Online: 27 November 2018
Compliance with ethical standards
:
: Kayhan Yakin declares that he has no conflict of interest. Ozgur Oktem declares that he has no conflict of interest. Basak Balaban declares that she has no conflict of interest. Bulent Urman declares that he has no conflict of interest.
: 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. The study was approved by the Koc University Committee on Human Research: 2015.013.IRB2.006 (chr@ku.edu.tr).