Figure 2C shows the number of shared genes within positively correlated loci between breast cancer and each predisposing disease, before and after applying the aforementioned filters. The full list of shared genes for each disease pair is provided in Supplementary Table 3. Notably, this list contains genes that have also been identified by other independent studies as being shared between disease pairs, such as the GATAD2A gene for breast cancer and schizophrenia (37). Here, GATAD2A is linked to schizophrenia.