Anemia, Sickle CellSickle Cell TraitHemoglobin, SickleErythrocytes, AbnormalAntisickling AgentsHemoglobin SC DiseaseFetal HemoglobinHydroxyureaThalassemiabeta-ThalassemiaHemoglobinopathiesJamaicaErythrocytesAcute Chest SyndromeHemoglobin C DiseaseHemoglobinsalpha-ThalassemiaHemoglobin AHemolysisBlood TransfusionExchange Transfusion, Whole BloodLeg UlcerErythrocyte DeformabilityHemoglobin CHemoglobins, AbnormalGlobinsSplenic InfarctionPainErythrocyte CountVascular DiseasesErythrocyte AgingErythrocyte MembraneErythrocyte IndicesBlood ViscosityReticulocytesErythrocyte TransfusionHomozygoteOxyhemoglobinsErythrocyte Aggregationgamma-Globinsbeta-GlobinsOxygenHemorheologyDimethyl AdipimidateHematocritLutheran Blood-Group SystemKidney Papillary NecrosisNigeriaSplenic DiseasesNeonatal ScreeningPriapismRetinal DiseasesHyphema2,3-DiphosphoglycerateIron OverloadErythrocyte InclusionsHypertension, PulmonaryPregnancy Complications, HematologicMediterranean IslandsPremarital ExaminationsHemoglobin A2EnuresisAnemia, HemolyticTricuspid Valve Insufficiency