Nature · 1974 · 343 citations · 7 references
MedicineEndocrinologyNutritional SciencesMineral MetabolismVitamin BiochemistryVitamin DVitamin D DeficiencyVitamin D MetabolismVitamin MetabolismVitamin PhysiologySerum 25-Hydroxyvitamin D StatusVitamin D AssessmentVitamin D PhysiologyVitamin D Synthesis
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