Scaled expression levels across the remaining nine candidate ECs analysed (figure 1) indicated within-gene differences in expression between tumour and normal tissue groups in both SLC25A23 (p = 0.040) and CHRNB4 (P = 0.002) but not in the remaining genes (p > 0.05), (figure 2A). The gene discussed is SLC25A23; the disease is neoplasm.