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Cross-Sectional and Prospective Cohort Study of Serum 25-Hydroxyvitamin D Level and Obesity in Adults: The HUNT Study

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Cod liver oil intake and incidence of asthma in Norwegian adults—the HUNT study

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Evaluation, Treatment, and Prevention of Vitamin D Deficiency: an Endocrine Society Clinical Practice Guideline

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Low vitamin D status is associated with physical inactivity, obesity and low vitamin D intake in a large US sample of healthy middle-aged men and women

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An evaluation of automated methods for measurement of serum 25-hydroxyvitamin D

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Global vitamin D status and determinants of hypovitaminosis D

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Frequency of Leisure-Time Physical Activity and Serum 25-Hydroxyvitamin D Levels in the US Population: Results from the Third National Health and Nutrition Examination Survey

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