. 2015 Aug 25;2015:903025. doi: 10.1155/2015/903025
Copyright © 2015 Elijah Bisung et al.
This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
Figure 1.
Study site: Usoma, Kenya [28].