it is concluded from the prognostic factors of acute lymphoblastic leukaemia , as far as they have become known up to now , such as initial leukocyte count , extent of organ infiltration , etc , that the pre-diagnostic duration of signs , representing a measure of the proliferation activity of the leukaemia cells , could also represent a relevant prognostic characteristic .
C0023449
acute lymphoblastic leukaemia
C0023418
proliferation activity