[Etiology of aplastic anemia and the hematopoietic microenvironment].
D000741:Anemia, Aplastic / Q000209:etiology* / Q000473:pathology; D000818:Animals; D001853:Bone Marrow / Q000648:ultrastructure*; D001854:Bone Marrow Cells; D006801:Humans; D011817:Rabbits