Received: 13 February 2020
Accepted: 22 September 2020
First Online: 7 October 2020
Ethics approval and consent to participate
: This study has been approved by the istitutional review board (IRB) of the Department of Surgical Sciences University of Torino, Italy and written consent was obtained from each participant according to Declaration of Helsinki. Researchers conducted the study using newly assigned identification number and personal information was removed.
: Not applicable.
: The authors declare that they have no competing interests.