Text and Data Mining valid from 2019-01-22
Received: 31 August 2017
Accepted: 11 January 2019
First Online: 22 January 2019
Ethics approval and consent to participate
: All patients signed an informed consent before being subjected to different procedures and the study was approved by our Institutional Ethics Committee of Foggia.
: Not applicable.
: The authors declare that they have no competing interests.
: Springer Nature remains neutral with regard to jurisdictional claims in published maps and institutional affiliations.