radioautographic studies after incorporation of 3h-thymidine in the mammary gland of the mouse demonstrate a decrease in the rate of mitosis in parenchymal epithelial cells from 80/1000 cells in the first week of life to 15/1000 cells in the 2nd week and an increase again at the 25th day of life of 100/1000 cells .
C0026255
mitosis
C0007634
cells