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Figure15. Mendelian Randomization: Genetically Determined Bio-Testosterone Associated with Increased Prostate Cancer Risk. Legend: UK Biobank Study: Genetic determinants of bioavailable testosterone were positively associated with risk of prostate cancer in men and ER+ breast cancer and endometrial cancer in women. Reproduced with permission from: Ruth KS, et al. Nat Med. 2020;26(2):252‐258.