. 2014 Aug 8;9(4):523–530. doi: 10.5114/wiitm.2014.44427
Copyright © 2014 Sekcja Wideochirurgii TChP
This is an Open Access article distributed under the terms of the Creative Commons Attribution-Noncommercial 3.0 Unported License, permitting all non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.
Figure 2.
Dynamics of FPG change