. 2006 Jul 17;5:17. doi: 10.1186/1475-2891-5-17
Copyright © 2006 Zeba 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.
Study pupils in Kaya and Bogandé.