Text and Data Mining valid from 2018-12-08
Received: 3 April 2018
Accepted: 2 December 2018
First Online: 8 December 2018
Compliance with ethical standards
: This article does not contain any studies with human participants or animals performed by any of the authors.
: Konstantinos Konstantinidis is a teaching proctor for Intuitive Surgical. Argyrios Ioannidis, Nikolaos Machairas, Christos Koutserimpas, Eleftherios Spartalis, and Michael Konstantinidis declare no conflict of interest.