Resolution: standard / high
Figure 3.
Annual cumulative weekly incidences of varicella per 100,000 population. Madrid Region Sentinel General Practitioner Network: 1997–2004. Weekly cumulative incidence has been expressed as cases per 100,000 persons.
Pérez-Farinós et al. BMC Infectious Diseases 2007 7:59 doi:10.1186/1471-2334-7-59
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