CDKN2A and acute lymphoblastic leukemia: rs77728904 is not in LD with rs3731217, the CDKN2A SNP previously reported as associated with BCP-ALL8 (r2EUR=0.015)17, and its association with BCP-ALL remains significant after conditioning on rs3731217 (Pdiscovery-conditional=1.25 × 10−7; Pcombined-conditional=9.34 × 10−13; Table 1).