Table 1.

Overview of treatment groups and number of mice per group at study onset and endpoint. Starting number of mice per each treatment group and genotype are shown. The number of mice remaining at 20 weeks post-DMBA treatment is shown in parentheses. Any change in the number of mice per group is accounted for in statistical tests at each time point.

Experimental Group	Treatment
	TPA Only	DMBA Only	DMBA+TPA	No Treatment
ROSA26-LSL-MCPyV168	17	22 (18)	23 (19)	0
K14Cre-MCPyV168	12	14	17 (16)	28 (22)
K14E6/E7	13	10	22 (16)	0