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Table 1 Mutation rates by tumor location

From: Mutational profiling reveals PIK3CA mutations in gallbladder carcinoma

  Gallbladder Cancer (32) Intra-hepatic CC (24) Perihilar CC (3) Middle CBD and
Intrapancreatic CC (13)
KRAS 0 (0%) 3 (13%) 1 (33%) 0 (0%)
NRAS 2 (6.3%) 1 (4%) 0 (0%) 0 (0%)
PIK3CA 4 (12.5%) 0 (0%) 0 (0%) 0 (0%)