Figure 3.

Time series of Spanish syndromic surveillance and reference data and documentation of Poisson CUSUM signals, week 36 (30.8.) to 52 (31.12.) in 2009. ED-ES: Emergency department, University Hospital Marqués de Valdecilla, Santander, Autonomous Region Cantabria, Spain.

Rosenkötter et al. BMC Public Health 2013 13:905   doi:10.1186/1471-2458-13-905
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