Tracking the spatial diffusion of influenza and norovirus using telehealth data: a spatiotemporal analysis of syndromic data.

Cooper, D.L., Smith, G.E., Regan, M., Large, S., Groenewegen, P.P. Tracking the spatial diffusion of influenza and norovirus using telehealth data: a spatiotemporal analysis of syndromic data. BMC Medicine: 2008, 6(16)