High tumour BCL2 protein expression was associated with lower grade of tumour (p = 4 × 10-9), presence of both oestrogen and progesterone receptor in tumours (p = 1 × 10-14 and 5 × 10-5 respectively), and lack of expression of CK5/6 (p = 0.002). The gene discussed is KRT5; the disease is neoplasm.