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Estimation of the dietary requirement for vitamin D in adolescents aged 14–18 y: a dose-response, double-blind, randomized placebo-controlled trial

NutritionDietary RequirementNutritional RequirementAdolescent NutritionClinical NutritionPediatricsRandomized Placebo-controlled TrialChild NutritionNutritional SciencesNutritional ScienceHuman NutritionPublic HealthVitamin DMicronutrient SupplementationMedical NutritionHealth Sciences