Boru, Cristian Eugeniu
Greco, Francesco
Giustacchini, Piero
Raffaelli, Marco
Silecchia, Gianfranco
Article History
Received: 15 November 2017
Accepted: 12 April 2018
First Online: 20 April 2018
Compliance with ethical standards
:
: No ethical approval was required for this study. Permission was granted by the Institutional Review Board for this retrospective study. All procedures performed in studies involving human participants were in accordance with the ethical standards of the institutional research committee and with the 1964 Helsinki Declaration and its later amendments or comparable ethical standards.
: For this type of study, formal consent was not required. Informed consent was obtained from all individual participants included in the study. This article does not contain any studies with animals performed by any of the authors.
: The authors declare that they have no conflict of interest.