RT Journal Article SR Electronic(1) A1 Brownstein, J S A1 Freifeld, C C YR 2007 T1 HealthMap: the development of automated real-time internet surveillance for epidemic intelligence JF Weekly releases (1997–2007) VO 12 IS 48 SP 3322 OP DO https://doi.org/10.2807/esw.12.48.03322-en UL https://www.eurosurveillance.org/content/10.2807/esw.12.48.03322-en