Anemia, HypochromicAnemia, Iron-DeficiencyIronIron OverloadFatigueHemochromatosisIron, DietaryIron Chelating AgentsFerritinsMuscle FatigueFatigue Syndrome, ChronicMental FatigueHemoglobinsErythrocyte IndicesTransferrinReceptors, TransferrinIron CompoundsDeficiency DiseasesFerrous CompoundsIron Metabolism DisordersIron IsotopesHepcidinsFerric CompoundsAnemiaIron RadioisotopesProtoporphyrinsPregnancy Complications, HematologicVitamin A DeficiencyHematocritHemoglobinometryFood, FortifiedVitamin B 12 DeficiencyAntimicrobial Cationic PeptidesIron-Dextran ComplexFMN ReductaseDietary SupplementsNutritional StatusFolic Acid DeficiencyCation Transport ProteinsIron Regulatory Protein 2Iron Regulatory Protein 1Iron-Binding ProteinsGlucaric AcidBloodlettingalpha 1-Antitrypsin DeficiencyErythropoietinHemosiderinPrevalenceDeferoxamineHematinicsPregnancy