EGFR and neoplasm: Other similarities have been observed where CBR1 expression was positively correlated with Gleason score (rs = 0.21, p < 0.001), tumour stage (rs = 0.11, p < 0.05), percentage of the specimen that contains tumours (rs = 0.17, p = 0.01) and EGFR (rs = 0.18, p = 0.01) [16].