Percentages of GPI⁻ cells from 6 to 42 weeks after transplantation. (A) Mean percentages of GPI⁻cells in various blood cells from a group of six mice who received aliquots of the same pool of mosaic fetal liver cells. (B) Those from a group of 22 mice who received another pool of cells consisting of a mixture of mosaic and normal embryos. Bars indicate standard deviation (SD).