EGFR and non-small cell lung carcinoma: Building on the experience of the 2017 pilot EQA, in 2018 five European EQA providers, Associazione Italiana di Oncologia Medica (AIOM), European Molecular Genetics Quality Network (EMQN), European Society of Pathology (ESP), Genomics Quality Assessment (GenQA) and Gen&Tiss, under the auspices of IQNPath, provided an EQA for the testing of EGFR variants in cfDNA for NSCLC patients.