Alternatively , anemia could result from accelerated suicidal erythrocyte death or eryptosis , which is characterized by exposure of phosphatidylserine ( PS ) at the erythrocyte surface and by cell shrinkage .
O O B-DiseaseOrPhenotypicFeature O O O O O O O O O O O O O O O O B-ChemicalEntity O B-ChemicalEntity O O O O O O O O O O