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adolescents
The validity of the Youth Physical Activity Questionnaire in 12–13-year-old Scottish adolescents
Paul Robert Walker
McCrorie
,
Ana
Perez
,
Anne
Ellaway
BMJ Open Sport & Exercise Medicine
Jan 2017,
2
(1)
e000163;
DOI:
10.1136/bmjsem-2016-000163
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