highly significantP < 0.05
In the mouse, the decrease in the percentage of immature GCs between P7 and P14 was less drastic, albeit highly significant (P7: 78.57 ± 2.44%; P14: 49.60 ± 3.49%, P < 0.05) as well as between P14 and P21 (34.47 ± 1.32%, P < 0.05), and between P21 and P28 (19.30 ± 0.42%, P < 0.05; Figure 4C ).