Statistical analysis
Statistical analysis was
performed using GraphPad Prism software, version 6 (GraphPad; La Jolla,
CA, USA). The Mann–Whitney U test was used for parameter
comparison between two subject groups.
The frequencies of
epitope-specific CD8+ T cells are presented as median
with 95% confidence interval (CI95%) or median with range.P -Value (two-tailed) below 0.05 (P ≤ 0.05) was considered
to be statistically significant.