Platelet (PLT) counts and mean platelet volume (MPV) in the blood after irradiation and/or HLU at day 4 or 30 after HLU (day 11 and 37 postirradiation, respectively). Three-way ANOVA: ^†P < 0.05, irradiation × HLU interaction; ^TP < 0.1, irradiation × HLU interaction. Post hoc Tukey test: ^#P < 0.05, ^TTP < 0.1. Note the strong HLU dependence at day 4 after treatments, but smaller influence of radiation for PLT counts.