Onerci Celebi, Ozlem
Sener, Ebru
Hosal, Sefik
Cengiz, Mustafa
Gullu, Ibrahim
Guler Tezel, Gaye
Funding for this research was provided by:
Hacettepe Üniversitesi
Article History
Received: 3 August 2017
Accepted: 3 October 2018
First Online: 20 October 2018
Ethics approval and consent to participate
: The study was conducted in accordance with the Declaration of Helsinki. Consent was not required due to the retrospective nature of the study and as some of the patients had deceased. The study protocol was approved and the informed consent was deemed unnecessary by the Hacettepe University Ethics Committee.
: N/A
: The authors declare that they have no competing interests.
: Springer Nature remains neutral with regard to jurisdictional claims in published maps and institutional affiliations.