Maïnassara, Halima B., Nicolas Molinari, Christophe Dematteï, and Pascale Fabbro-Peray. “The Relative Risk of Spatial Cluster Occurrence and Spatiotemporal Evolution of Meningococcal Disease in Niger, 2002-2008”. Geospatial Health 5, no. 1 (November 1, 2010): 93-101. Accessed August 21, 2019. https://geospatialhealth.net/index.php/gh/article/view/190.