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Article History

Received: 28 February 2019

Accepted: 29 April 2019

First Online: 22 May 2019

Compliance with ethical standards

:

: Dr Luca Aldrighetti, Federica Cipriani, Guido Fiorentini, Marco Catena, Michele Paganelli, and Francesca Ratti have no conflicts of interest to disclose concerning any commercial interest that they may have in the subject of study and the source of any financial or material support.

: The material has not been previously published or submitted elsewhere for publication and will not be sent to another journal until a decision is made concerning publication. All listed authors have participated in the study and have approved the final manuscript. Dr Luca Aldrighetti, Federica Cipriani, Guido Fiorentini, and Francesca Ratti have no conflicts of interest to disclose concerning any commercial interest that they may have in the subject of study and the source of any financial or material support.

: 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. This article does not contain any studies with animals performed by any of the authors.

: Informed consent was obtained from all individual participants included in the study.