the mean number of sces per metaphase in human placental blood was 3.32 +/- se 0.219 as compared with levels of 5.13 +/- se 0.273 in young adults ( p less than 0.01 ) , and in the presence of added vitamin k1 at a concentration of 1 x 10 ( -6 ) m the sce increased significantly in both adult and placental cells .
C0025564
metaphase
C0007634
cells