Validity of a two-item physical activity questionnaire for assessing attainment of physical activity guidelines in youth

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Validity of a two-item physical activity questionnaire for assessing attainment of physical activity guidelines in youth

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ژورنال

عنوان ژورنال: BMC Public Health

سال: 2015

ISSN: 1471-2458

DOI: 10.1186/s12889-015-2418-6