A good linear correlation , with an r value of 0 . 91 , between the ED50 values for the differentiation-inducing activity towards HL-60 cells and that towards NB4 cells was found .
a good linear correlation , with an r value of 0 . 91 , between the ed50 values for the differentiation-inducing activity towards hl-60 cells and that towards nb4 cells was found .
O O O O O O O O O O O O O O O O B-other_name I-other_name O O B-other_name I-other_name O B-cell_line I-cell_line O O O B-cell_line I-cell_line O O O