Received: 22 April 2019
Accepted: 15 July 2019
First Online: 29 July 2019
Ethics approval and consent to participate
: The study was submitted to the Institutional Review Board and carried out in accordance with the principles outlined in the Helsinki Declaration. Data was retrospectively collected, double checked by two authors, and anonymized to create a dataset for statistical analysis: all patients included in the present study gave consent to the use of their data for scientific purposes.
: Not applicable.
: All the authors declare that they have no competing interests.