Assertion: adolescent's year | /r/HasProperty | aged 12-
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Source sentences:
text: Data on vitamin C intake among adolescents are limited, but a recent US national survey, the 2003-2004 National Health and Nutrition Examination Survey (NHANES), found that serum vitamin C concentrations of adolescents (aged 12-19 years) were lower in adolescents compared to younger children (6-11 years), and adolescent girls had higher levels than adolescent boys (50).