. 2009 Apr 22;5:12. doi: 10.1186/1746-4269-5-12
Copyright © 2009 Alves 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 1.
Map of study area, Municipality of Pocinhos, NE Brazil.