. 2011 May 25;11:390. doi: 10.1186/1471-2458-11-390
Copyright ©2011 Ploubidis et al; licensee BioMed Central Ltd.
This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/2.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
Figure 2.
Conceptual path diagram of the hypothesised structural model.