Anemia, Sickle CellSickle Cell TraitAnemiaHemoglobin, SickleErythrocytes, AbnormalAntisickling AgentsHemoglobin SC DiseaseAnemia, AplasticFetal HemoglobinAnemia, HemolyticBlast InjuriesAnemia, Refractory, with Excess of BlastsAnemia, RefractoryHemoglobinsFanconi AnemiaHydroxyureaThalassemiaAnemia, Hemolytic, AutoimmuneAnemia, HypochromicErythrocytesbeta-ThalassemiaAnemia, MacrocyticAnemia, PerniciousAnemia, SideroblasticHemoglobinopathiesJamaicaBlood TransfusionAcute Chest Syndromealpha-ThalassemiaRefractory Period, ElectrophysiologicalHemoglobin C DiseaseHemolysisHemoglobin AAnemia, MegaloblasticTreatment OutcomeErythrocyte CountInfectious Anemia Virus, EquineErythrocyte IndicesAnemia, Hemolytic, CongenitalHemoglobins, AbnormalHematocritErythrocyte DeformabilityExchange Transfusion, Whole BloodHemoglobin CGlobinsLeg UlcerPregnancy Complications, HematologicErythropoietinIronErythrocyte AgingErythrocyte TransfusionPainLeukemia, Myeloid, AcuteReticulocytesEquine Infectious AnemiaBone MarrowSplenic InfarctionErythrocyte MembraneHemoglobinometryErythropoiesisTime FactorsAcute DiseaseRecurrenceChicken anemia virusHomozygoteAnemia, Dyserythropoietic, CongenitalRetrospective StudiesVascular DiseasesAnemia, Diamond-BlackfanLeukemia, MyeloidBlood ViscosityBlood Cell CountOxygenIron OverloadSalvage TherapyFerritinsFanconi Anemia Complementation Group ProteinsProspective StudiesFollow-Up StudiesRisk FactorsNigeriaErythrocyte Aggregationgamma-GlobinsReticulocyte CountOxyhemoglobinsDrug Administration SchedulePrevalenceSplenectomyHemorheologyInfant, Newbornbeta-GlobinsDimethyl AdipimidateAnemia, NeonatalCytarabineSplenomegalySplenic DiseasesLutheran Blood-Group SystemHematinicsAntineoplastic AgentsCohort Studies