CELCC 2014 Abstracts O2. Frequency of EGFR gene mutations in patients with NSCLC in Czech Republic Juraj Kultan, Vitezslav Kolek, Ondrej Fiala, Jindrich Fínek, Miloš Pešek, Monika Šatánková, Jana Skrickova, Zbynek Bortlicek, Zuzana Zbožínková