specifically , patients with rheumatoid arthritis ( 34 cases ) , sickle cell anemia ( 25 cases ) , aregenerative anemia ( 27 cases ) , and aplastic anemia ( 13 cases ) had erythropoietin titers overlapping with those observed in simple anemia ( 61 cases ) at corresponding hematocrits .
C0002893
aregenerative anemia
C0002871
anemia