Fig. 1
From: Proportion and clinical features of never-smokers with non-small cell lung cancer
Frequencies of driver mutations in 1153 patients with lung adenocarcinoma according to smoking status. EGFR epidermal growth factor receptor, KRAS Kirsten rat sarcoma viral oncogene homolog, ALK anaplastic lymphoma kinase. n is the number of patients with lung adenocarcinoma who were tested for each mutation