Anemia, MacrocyticAnemiaAnemia, PerniciousReticulocytosisAnemia, Diamond-BlackfanErythrocyte CountFolic Acid DeficiencyVitamin B 12Vitamin B 12 DeficiencyErythropoiesisAnemia, AplasticAnemia, HemolyticFanconi AnemiaAnemia, Hemolytic, AutoimmuneAnemia, HypochromicAnemia, RefractoryAnemia, SideroblasticAnemia, Sickle CellAnemia, MegaloblasticInfectious Anemia Virus, EquineHemoglobins