rs111749498 (MAF of 2.73%, associated with F-ALL, OR 2.29 (1.72–3.04)) is near SLC47A2, which encodes a multidrug efflux pump that mediates excretion of the drug metformin, commonly used to manage infertility in women with PCOS26. This evidence concerns the gene SLC47A2 and acute lymphoblastic leukemia.