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Table 1
Tumorigenesis in short-term hormone-treated mice
Experiment	Group	Tumors/transplants (percentage)	Percentage inhibition	Experiment duration (weeks)

1/1A	Untreated	16/66 (24)	-	45
	E/P (5–7)	2/66 (03)^a	87.5	45
2	Untreated	10/20 (50)	-	48
	E/P (5–7)	3/20 (15)^a	70	48
	E/P (23–25)	4/20 (20)^a	60	48
	Tamoxifen (11–24)	0/20 (0)^a	100	48
3	Untreated, trans. (3)	9/20 (45)	-	58
	E/P (5–7), trans. (3)	3/15 (20)^a	56	58
	Untreated, trans. (11)	9/20 (45)	-	58
	E+P (5–7), trans. (11)	4/20 (20)^a	56	58
4	Untreated	15/15^b(100)		24
	E/P	6/15^b(37) ^a	63	32
	E	5/15^b(33) ^a	67	32

E, estrogen; P, progesterone; trans., transplantation. ^ap < 0.05; ^bin this experiment, the column refers to the number of tumor-bearing mice/total number of mice.
Rajkumar et al. Breast Cancer Research 2007 9:R12 doi:10.1186/bcr1645

Table 1