Text and Data Mining valid from 2018-01-17
Received: 11 July 2017
Accepted: 30 December 2017
First Online: 17 January 2018
Compliance with ethical standards
: Magat Guldane and Sener Ozcan Sevgi declare that they have no conflict of interest.
: All procedures followed were in accordance with the ethical standards of the responsible committee on human experimentation (institutional and national) and with the Helsinki Declaration of 1975, as revised in 2008.