Text and Data Mining valid from 2019-05-16
Received: 3 January 2019
Accepted: 22 February 2019
First Online: 16 May 2019
Compliance with ethical standards
: Author A and Author B declare that they have no conflict of interest.
: Ethical committee approval was obtained (SIC70601-602).
: Informed consent was obtained from all individual participants included in the study.
: The system used in the surgeries was for a trial period. No financial or commercial relations are present between the authors and any of the companies mentioned in the text. No funding was received for the study.