EGFR and neoplasm: Recently, it has been shown that ionising radiation stimulates EGFR activation and cellular proliferation (Schmidt-Ullrich et al, 1997; Dent et al, 1999; Reardon et al, 1999; Todd et al, 1999) and that anti-EGFR antibody approaches can improve tumour radiation response (Saleh et al, 1999; Bianco et al, 2000; Milas et al, 2000).