title: Depression of natural killer cell activity in patients with aplastic anemia.
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D000741:Anemia, Aplastic / Q000097:blood / Q000276:immunology*; D005260:Female; D006457:Hemoglobinuria, Paroxysmal / Q000097:blood / Q000276:immunology; D006801:Humans; D007694:Killer Cells, Natural / Q000276:immunology*; D008297:Male; D008875:Middle Aged