. 2016 Jul 29;11(3):178–185. doi: 10.5114/wiitm.2016.61521
Copyright: © 2016 Fundacja Videochirurgii
This is an Open Access article distributed under the terms of the Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0) License, allowing third parties to copy and redistribute the material in any medium or format and to remix, transform, and build upon the material, provided the original work is properly cited and states its license.
Figure 1.
Flowchart of the study