Average number of nuclei per cell in directly exposed and bystander cells for neutron and cobalt-60 gamma rays.

aNeutron data shown are for replicate 1; the values for replicate 2 were similar (p>0.05).
bCombined values of the controls (pre-radiation, post-radiation and transportation control).
cMedia without cells was irradiated with 4 Gy and transferred to unirradiated cells.
dToo few high quality binucleated cells were available for scoring.