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Table 2 Frequencies of gene mutations in the series of 796 patients screened for all four genes

From: Prognostic impact of KRAS, NRAS, BRAF, and PIK3CA mutations in primary colorectal carcinomas: a population-based study

Mutated genes

KRAS

KRAS + PIK3CA

NRAS

NRAS + PIK3CA

BRAF

BRAF + PIK3CA

PIK3CA

Wild-type

Cases

227

36

21

8

16

6

64

418

%

28.5

4.5

2.7

1.0

2.0

0.8

8.0

52.5