Reference:
Ahn, W., Dargar, S., Halic T., Lee, J., Li, B., Pan, J., Sankaranarayanan, G., Roberts, K., and De, S. (2014). Development of a virtual reality simulator for natural orifice translumenal endoscopic surgery (NOTES) cholecystetctomy procedure..
Studies in Health Technology and Informatics, 196, 1-5.