Temporal and spatial patterns of the clinical surveillance of BSE in France, analysed from January 1991 to May 2002 through a vigilance indexMarie Cuenot, Didier Calavas, David Abrial, Patrick Gasqui, Géraldine Cazeau and Christian DucrotVet. Res., 34 3 (2003) 261-272DOI: https://doi.org/10.1051/vetres:2003002