Text and Data Mining valid from 2018-05-02
Received: 7 July 2017
Accepted: 17 April 2018
First Online: 2 May 2018
Ethics approval and consent to participate
: All patients provided signed informed consent. In accordance with Italian law, ethics committee approval was not obtained, as the study was purely retrospective, with no changes to standard clinical practice. According to Italian law, when patients sign an informed consent for an operation, they automatically consent to be included in studies detailing the outcomes of their treatment.
: The authors declare that they have no competing interests.
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