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Outdoor exposure and vitamin D levels in urban children with asthma

Sonali Bose*, Patrick N Breysse, Meredith C McCormack, Nadia N Hansel, Robert R Rusher, Elizabeth Matsui, Roger Peng, Jean Curtin-Brosnan, Gregory B Diette and for the Center for Childhood Asthma in the Urban Environment

Nutrition Journal 2013, 12:81  doi:10.1186/1475-2891-12-81

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