Text and Data Mining valid from 2018-05-30
Received: 20 April 2018
Accepted: 23 May 2018
First Online: 30 May 2018
Compliance with ethical standards
: Author Elif Gur Kabul, Author Ummuhan Bas Aslan, Author Bilge Başakcı Calik, Author Murat Tasci, and Author Veli Cobankara declare that they have 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.