In the subgroup of squamous cell lung carcinoma, EphA1, A5 and A7 expression did not affect patients’ survival (Figure 4, log-rank test, p = 0.294, p = 0.125 and p = 0.621, respectively), while no association with ECOG performance status was noted (data not shown). This evidence concerns the gene EPHA1 and squamous cell lung carcinoma.