Figure 1.

Proportion of large and fast-growing tumors within each treatment group. Proportion of tumors within each Se-casein treatment with a) final volume above 500 mm³, b) maximum growth rate above 0.03 d^-1, c) maximum volume (V_max) above 1600 mm³, d) inflection point after 28 days, and e) final growth rate above 0.025 d^-1 were subjected to an exact Cochran-Armitage test for linear effect of dietary Se level. P-values are shown as P_exact.