ERBB2 and neoplasm: These patients along with the seven patients with HER-2/neu− tumours and the seven healthy donors exhibited PF to HER-2(9369), which did not differ statistically when compared to each other (PF range and mean PF in HER-2/neu− patients: 0–10.2 and 4.5; and in healthy donors: 0–9.7 and 4.4, respectively).