. 2011 Dec 30;7(6):1000–1012. doi: 10.5114/aoms.2011.26612
Copyright © 2011 Termedia & Banach
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 1.
Flow diagram of the study selection process