Jean Gaudart, Belco Poudiougou, Alassane Dicko, Stéphane Ranque, Ousmane Toure, Issaka Sagara, Mouctar Diallo, Sory Diawara, Amed Ouattara, Mahamadou Diakite, Ogobara K Doumbo
BMC Public Health. 2006; 6: 286. Published online 2006 November 21. doi: 10.1186/1471-2458-6-286