Table 1. Multiple tumor cell lines reduce NK cell numbers.

Breed	Number of Mice	Number of Experiments	Tumor	Spleen	p-value	Bone Marrow	p-value
C57Bl/6	28	7	Control	1.63×106±1.9×105		4.27×105±8.0×104
	28		EL4	1.01×106±1.3×105	0.005*	2.68×105±7.1×104	0.002*
	4	1	Control	1.42×106±2.2×105		1.01×106±2.2×105
	4		B16F1	0.54×106±1.6×105	0.010	0.59×106±1.2×105	0.053
	9	2	Control	1.34×106±7.4×105		2.70×105±1.8×104
	9		MC38	0.74×106±0.2×105	0.32*	0.96×105±1.8×104	0.001*

^*p-value was calculated using a paired t test.