Table 3. Clonality analysis of 12 samples according to their copy number variations at the probe level.

Sample 1	Sample 2	LR2 statistic	LR2 p value
1-1	1-2	2.53E-03	0.35
2-1	2-2	1.12E-02	0.18
3-1	3-2	3.10E-03	0.33
4-1	4-2	9.90E-04	0.47
5-1	5-2	1.35E+27	0.00
6-1	6-2	2.67E+09	0.00

LR2: Likelihood ratio 2, quantifies the odds that the two tumors are clonal.

-1: First tumor, -2: second tumor.

1-4, BBC patients; 5-6, metastatic breast cancer patients.