Graceffa, Giuseppa
Patrone, Renato
Vieni, Salvatore
Campanella, Silvia
Calamia, Sergio
Laise, Iole
Conzo, Giovanni
Latteri, Mario
Cipolla, Calogero
Article History
Received: 2 February 2019
Accepted: 15 February 2019
First Online: 29 May 2019
Ethics approval and consent to participate
: This retrospective study has been approved by the institutional review board at University Hospital AUOP Paolo Giaccone of Palermo.
: All patients consented to publish their data.
: The authors declare that they have no competing interests.
: Springer Nature remains neutral with regard to jurisdictional claims in published maps and institutional affiliations.