Stefan Dongus, Dickson Nyika, Khadija Kannady, Deo Mtasiwa, Hassan Mshinda, Ulrike Fillinger, Axel W Drescher, Marcel Tanner, Marcia C Castro, Gerry F Killeen
Int J Health Geogr. 2007; 6: 37. Published online 2007 September 4. doi: 10.1186/1476-072X-6-37