Crohn DiseaseDuodenoscopyIronAnemiaAnemia, Iron-DeficiencyAnemia, HypochromicIron, DietaryFerritinsIron Chelating AgentsHemoglobinsErythrocyte IndicesIron OverloadAnemia, AplasticAnemia, HemolyticIron CompoundsTransferrinReceptors, TransferrinNod2 Signaling Adaptor ProteinFerrous CompoundsIron Metabolism DisordersHepcidinsDeficiency DiseasesIron IsotopesFanconi AnemiaAnemia, PerniciousPregnancy Complications, HematologicAnemia, MacrocyticFerric CompoundsProtoporphyrinsIron RadioisotopesAnemia, Hemolytic, AutoimmuneHematocritInflammatory Bowel DiseasesHemoglobinometryErythropoietinAnemia, SideroblasticAnemia, Sickle CellColitis, UlcerativeAnemia, MegaloblasticVitamin B 12 DeficiencyAnemia, RefractoryVitamin A DeficiencyFood, FortifiedAntimicrobial Cationic PeptidesFolic Acid DeficiencyHematinicsIron-Dextran ComplexNutritional StatusErythropoiesisDietary SupplementsErythrocyte CountFMN ReductaseCation Transport ProteinsGlucaric AcidErythrocytesHemochromatosisInfectious Anemia Virus, EquineIron Regulatory Protein 2BloodlettingIron-Binding ProteinsPregnancyIron Regulatory Protein 1PrevalenceAnemia, Hemolytic, CongenitalHookworm Infectionsalpha 1-Antitrypsin DeficiencyPicaDeferoxamineHemosiderinSpecialties, NursingLiverZincIntestinal MucosaTrace Elementsbeta-ThalassemiaFolic AcidVitamin D DeficiencyBiological AvailabilityEquine Infectious AnemiaReticulocyte CountDietIron Carbonyl CompoundsIntestinal AbsorptionSiderophoresGlucosephosphate Dehydrogenase DeficiencyIron-Regulatory ProteinsAnemia, Dyserythropoietic, CongenitalMutationHomeostasisReceptor-Interacting Protein Serine-Threonine Kinase 2EnterostomyThalassemiaChicken anemia virusAcetylmuramyl-Alanyl-IsoglutamineIleumAnemia, Diamond-BlackfanErythrocytes, AbnormalIgA DeficiencyInflammationBlood Cell Count