Table 2.

One versus two tumor specimens

Tumor	Public mutations	Private mutations	Single biopsy	Single biopsy	Two biopsies	Two biopsies
			Fraction of public mutations correctly called	Fraction of private mutations correctly called	Fraction of public mutations correctly called	Fraction of private mutations correctly called
K	14	42	1	0.38	1	1
S	24	13	1	0.38	1	1
P	30	7	1	0.29	1	1
X	52	17	0.98	0.71	1	1
O	45	6	0.98	0.50	1	1
A	36	25	0.94	0.79	1	1
C	40	32	0.98	0.55	1	1
M	6	17	1	0.10	1	0.29
N	72	29	0.96	0.42	0.99	0.10
W	95	5	0.97	0.29	1	0.80
U	50	12	0.95	0.54	1	1
T	36	19	0.85	0.52	1	0.95
Average			0.97	0.46	0.99	0.85