Text and Data Mining valid from 2018-08-25
Received: 2 April 2018
Accepted: 16 August 2018
First Online: 25 August 2018
Ethics approval and consent to participate
: This retrospective study was approved by the Ethical Committee of Ankara Yıldırım Beyazıt University (Reference number: 26379996/178). The committee decided that additional informed consent was not required due to the retrospective nature of analysis.
: Not applicable.
: The authors declare that they have no competing interests.
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