_:vb50950775 . _:vb50950775 . _:vb50950775 . _:vb50950775 "An aplastic anemia that is characterized by displacement of hemopoietic bone-marrow tissue either by fibrosis, tumors or granulomas."^^ . _:vb50950775 . _:vb50950775 "url:http://en.wikipedia.org/wiki/Myelophthisic_anemia"^^ . _:vb50950775 .