Figure 2.

The age and sex distribution patterns of the study population (A) and PML patients (B). The subjects and PML patients were divided into three groups on the basis of HIV infection, hematologic disorders, or other underlying diseases including autoimmune disorders. The vertical axes indicate the number of individuals. The solid and open bars show the results for males and females, respectively. The numbers of below the bars represent 10-year age groups (e.g., “0” indicates individuals aged 0 to 9). The data exclude 1 HIV-positive subject whose age was not known.

Nakamichi et al. BMC Neurology 2012 12:121   doi:10.1186/1471-2377-12-121
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