Table 1.

Tumor doubling times derived from a single parameter, monoexponential tumor growth equation y = e^(αt)

TUMORS <0.4 g	TD (days)	sem (days)	R2	Mann-Whitney rank sum test *
5×7 Gy	21.0	1.4	0.92	0.033
20 Gy fast	12.8	0.9	0.79	0.847
20 Gy slow	12.0	0.6	0.90	0.063
TUMORS >0.4 g
5×7 Gy	14.6	1.0	0.83
20 Gy fast	14.5	0.6	0.92
20 Gy slow	14.8	0.8	0.91
NT controls	3.6	0.2	0.87

^*P values comparing growth curves of tumors <0.4 g and tumors >0.4 g.