Received: 10 October 2018
Accepted: 28 February 2020
First Online: 6 March 2020
Ethics approval and consent to participate
: Ethical approval for the trainees to participate in this study was obtained from the University Research Ethics Committee of the University of Dundee (ref 15,240). Subjects were informed clearly that participation in the study was purely voluntary. Verbal consent was given by the surgical trainees to indicate that they fully understood the nature of this study and agreed to participate in this study.
: This manuscript does not contain any individual person’s data. Participation in this study included a statement of intent to publish.
: Dr. Benjie Tang, Dr. Lin Zhang, and Mr. Afshin Alijani have no conflicts of interest or financial ties to disclose.