Article History
Received: 10 September 2019
Accepted: 11 December 2019
First Online: 19 December 2019
Ethics approval and consent to participate
: The University of Chieti-Pescara, Italy, classified the study to be exempt from ethical review as it is not carries risk and involves the use of existing data that contains only non-identifiable data about human beings. A consent to participate was requested for this research. All patients signed a written informed consent form.
: Not applicable.
: The authors declare that they have no competing interests.