Abnormal erythrocyte morphology anemia (phenotype) true SNOMEDCT:271737000 OMIM:300908 DOID:2355 http://purl.obolibrary.org/obo/HP_0001903 MESH:D000740 NCIt:C2869 HP:0001903 A reduction in the number of circulating erythrocytes or in the quantity of hemoglobin. Dani Welter