T-cell counts and percentages of naive T-cell subsets. (A) Total, naive, and memory CD4⁺ T-cell numbers in counts per microliter of blood. (B) Total, naive, and memory CD8⁺ T-cell numbers in counts per microliter of blood. (C) Percentage of naive CD4⁺ and naive CD8⁺ T cells. ▴ represents values after thymectomy; ▵, samples taken just before thymectomy; and ○, healthy controls. Lines connect longitudinal samples (n = 7).