Sarinc Ulasli, Sevinc http://orcid.org/0000-0003-3144-7932
Koksal, Deniz
Karcioglu, Oguz
Babaoglu, Elif
Onder, Sevgen
Emri, Salih
Article History
Received: 12 December 2017
Accepted: 14 February 2018
First Online: 22 February 2018
Compliance with ethical standards
:
: All authors certify that they have no affiliations with or involvement in any organization or entity with any financial or non-financial interest in the subject matter or materials discussed in this manuscript.
: This study was approved by the local Ethics Committee of Hacettepe University (registered under GO 16/616). 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.
: For this retrospective study formal consent is not required.