EGFR and non-small cell lung carcinoma: The full text of the remaining 186 articles was screened; 166 articles were excluded due to: no information about bone metastases or SREs (n = 139), unknown EGFR mutational status (n = 10), unknown if the patients with NSCLC and bone metastases were patients with an EGFR mutation or if they were wildtype patients (n = 9), insufficient patients with an EGFR mutation (n = 4), other reasons (n = 4).