title: [Clinical study on aplastic anemia].
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D000741:Anemia, Aplastic / Q000453:epidemiology / Q000209:etiology / Q000628:therapy; D005260:Female; D006801:Humans; D007564:Japan; D008297:Male; D008875:Middle Aged