How many days was that? Intra-individual variability and physical activity assessment.
Department of Pediatrics, Baylor College of Medicine, USA.
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Baranowski
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de Moor
D000203:Activities of Daily Living; D006801:Humans; D008019:Life Style; D010809:Physical Fitness; D015203:Reproducibility of Results; D012107:Research Design; D011795:Surveys and Questionnaires / Q000592:standards