Benjamin G Jacob , Ephantus J Muturi , Erick X Caamano , James T Gunter , Enoch Mpanga , Robert Ayine , Joseph Okelloonen , Jack Pen-Mogi Nyeko , Josephat I Shililu , John I Githure , James L Regens , Robert J Novak and Ibulaimu Kakoma
International Journal of Health Geographics 2008, 7:11doi:10.1186/1476-072X-7-11