Three-Dimensional (3D) Vision: Does It Improve Laparoscopic Skills? An Assessment of a 3D Head-Mounted Visualization System >>>> <a href="http://www.ncbi.nlm.nih.gov/pmc/articles/PMC1477587/" rel="nofollow" target="_blank">http://www.ncbi.nlm.nih.gov/pmc/articles/PMC1477587/</a>