CD4⁺ and CD8⁺ T-cell subset recovery.

Naive (circles), CD27⁺ memory (triangles), CD27⁻ memory (squares), and CD27⁻effector (diamonds) lymphocytes within the CD4⁺ (A) and CD8⁺ (B) T-cell compartments are shown. Sequential patient values were compared using the Wilcoxon Signed Ranks test, and the Mann-Whitney U test was used for comparison with healthy individuals (*P < .05).