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Subject
- 87 Human
- 67 Humans
- 66 Adolescent
- 47 Preschool child
- 46 Adult
- 40 Infant
- 40 Major clinical study
- 34 Child, preschool
- 34 Controlled study
- 33 School child
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Date issued
- 70 2010 - 2020
- 18 2001 - 2009