#13 ¿De dónde sacas que la muestra de no vacunados no pasa de los 8 años?
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#17 Cierto, pero también dice:
Due to the fact that the majority of children in the survey are between 0 and 2 years of age and some diseases generally do not appear in this age group, the results are subdivided into different age groups (you can see that by clicking on the chart)