Vitamin B 12 DeficiencyVitamin B 6Vitamin AVitaminsVitamin DVitamin EVitamin A DeficiencyVitamin B 12Vitamin B ComplexVitamin D DeficiencyPyridoxineVitamin B DeficiencyVitamin E DeficiencyFolic AcidTranscobalaminsFolic Acid DeficiencyCobalt IsotopesVitamin K 1Vitamin B 6 DeficiencyAvitaminosisVitamin K DeficiencyDietary SupplementsDeficiency DiseasesAscorbic AcidMethylmalonic AcidThiamineAnemia, PerniciousRiboflavinCholecalciferolPyridoxal PhosphateAnemia, MegaloblasticIntrinsic FactorMicronutrientsDietAnemia, MacrocyticNutritional StatusHydroxocobalaminMalabsorption SyndromesThiamine DeficiencyPyridoxic AcidHyperhomocysteinemiaReceptors, CalcitriolVitamin D-Binding ProteinPyridoxalAnemia, Iron-Deficiencyalpha 1-Antitrypsin DeficiencyPyridoxal KinaseNutritional RequirementsIgA DeficiencyMutationIronVitamin K 2Immunologic Deficiency SyndromesSchilling TestMice, KnockoutIgG DeficiencyFood, FortifiedCobamidesMagnesium DeficiencyLiverCalcitriolZincAscorbic Acid DeficiencyCalcifediolAntioxidantsMetabolism, Inborn ErrorsBhutanProtein C DeficiencyGlucosephosphate Dehydrogenase DeficiencyPregnancyVitamin K Deficiency BleedingCobalt RadioisotopesRicketsErgocalciferolsRiboflavin DeficiencySeleniumbeta CaroteneEuglenaPyridoxamineHomocysteineVitamin K 3MethionineMice, Inbred C57BLMethylenetetrahydrofolate Reductase (NADPH2)PhenotypeSunlightAntithrombin III DeficiencyIntestinal AbsorptionPantothenic Acidalpha-TocopherolDiet, VegetarianInfant, NewbornErythrocytesCorrinoidsRisk FactorsTrace Elements5-Methyltetrahydrofolate-Homocysteine S-MethyltransferaseMolecular Sequence DataTime FactorsAnemia, Hypochromic