Text and Data Mining valid from 2018-04-19
Received: 3 November 2017
Accepted: 3 April 2018
First Online: 19 April 2018
Ethics approval and consent to participate
: Ethics approval was obtained from Fatih Sultan Mehmet Education and Research Hospital ethics committee/2014. Consent was not necessary for our study.
: The authors declare that they have no competing interests.
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