EGFR and non-small cell lung carcinoma: Patients with NSCLC (n = 54) were eligible for tissue EGFR testing, however, tissue EGFR test results were available only for 38 NSCLC patients, resulting in a significantly lower tissue results accessibility rate of 70.4% (38/54), with 29.6% of cases (16/54) having no EGFR test results from tissue (Supplementary Figure 2).