SRL for [pyrosequencing]: Mutation analyses were performed using polymerase chain reaction -LRB- PCR -RRB- and [pyrosequencing] for codon 132 of the IDH1 gene and codon 172 of the IDH2 gene on DNA extracted from parraffin - embedded tissue .
ARG-2: for codon 132 of the IDH1 gene and codon 172 of the IDH2 gene | ARG-1: on DNA extracted from parraffin - embedded tissue