. 2007 Jun 28;7:19. doi: 10.1186/1472-6920-7-19
Copyright © 2007 Hoat 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 3.
Frequency of skill use according to working areas.