Table 1.

Time course of the study.

Items	Before uptake	Treatment				Stop of this study
		Before	Start	3 weeks	End
Informed consent	◯
Subjective or objective complaints	◯		◯	◯	◯	◯
Clinical laboratory tests	◯				◯	◯
NK cell activity	◯				◯
Test food (HRB or placebo food)
Chemoradiotherapy
Adverse events