these al 's are characterized by a high incidence of anemia , in particular refractory anemia , preceding the hematological disorder by several months , by the frequent finding of myelofibrosis , by the essentially granulocytic nature of the al , and by the low rate of remission and the , in general , extremely short sruvival of a few months .
C0002871
anemia
C0002893
refractory anemia