Table 7.

Correlation between expression levels of different tumors (BC2 and BC91) determined with both poly(A)⁺ RNA and aRNA for each tumor.^a,b

	Virtual correlation coefficient	Number of arrays
BC2 poly(A)+ RNA vs. BC91 poly(A)+ RNA	0.55	5 vs. 4
BC2 aRNA vs. BC91 aRNA	0.55	2 vs. 2
BC2 aRNA vs. BC2 poly(A)+ RNA	0.84	2 vs. 5
BC91 aRNA vs. BC91 poly(A)+ RNA	0.82	2 vs. 4
BC2 aRNA vs. BC91 poly(A)+ RNA	0.52	2 vs. 4
BC91 aRNA vs. BC2 poly(A)+ RNA	0.46	2 vs. 5

^aData were obtained from comparing expression level of 11,929 clones using the described selection criteria. ^bData were obtained using the Jeffrey lab protocol with G-50 cleanup.