The corresponding values for the tumour grades 1a-1b, 2, 3 and 4, respectively, were: tumour ErbB2-IR score ≤2.75, 92 [61%], 30 [20%], 25 [17%] and 3 [2%]); tumour ErbB2-IR score >2.75, 83 [41%], 61 [30%], 49 [24%] and 8 [4%] (P<0.005, χ2 test). Here, ERBB2 is linked to neoplasm.