the overall difference in hematopoietic activity in the irradiated ( 400 roentgens ) mice treated with the macroglobulin fraction , in comparison with this activity in the controls , was three- to fivefold in the bone marrow and nine- to tenfold in the spleen between days 4 and 7 after irradiation .
C0018957
hematopoietic
C0005953
bone marrow