Text and Data Mining valid from 2018-09-25
Received: 30 April 2018
Accepted: 17 September 2018
First Online: 25 September 2018
Ethics approval and consent to participate
: This retrospective study was approved by the local ethics committee, Comitato etico Palermo 1, Azienda Opedaliera Universitaria Policlinico Paolo Giaccone di Palermo, verbale n.04/2017, and is in accordance with the Declaration of Helsinki. Written informed consent was obtained from the patients.
: Not applicable.
: The authors declare that they have no competing interest.
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