ZNF703 and breast cancer: Our finding that genetic upregulation of ZNF703 in normal mammary stromal cells (predominantly adipocytes) was associated with increased breast cancer risk in 58,648 women was confirmed by a highly significant (p-value=2.1 × 10−20) association of tissue-level GReX predicted using S-PrediXcan subcutaneous fat models in 228,951 EA women, which has not previously been reported to our knowledge.