from 1365 to 1382, 205 cases of acute lymphoblastic leukemia (all) were refered to our center. 160 cases achived complete remission and entered our clinical trial of cns relapse which were under consideration. the patients included 98 men and 62 women with an average age of 32 years (range 4-61 years). 160 of 205 cases had complete remission with a rate about 78%.the latter group was entered in...