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Persistence of vitamin B12 insufficiency among elderly women after folic acid food fortification

Vitamin NutritionNutritionNutritional RequirementGeriatricsLongevityElderly WomenPublic Health NutritionVitamin B ComplexNutritional ScienceHuman NutritionPublic HealthVitamin B12 InsufficiencyMedicineWomen's Health