GPR160 and testicular germ cell tumor: Furthermore, the top e2QTL for GPR160 upon TBOOH exposure represents a GWAS risk variant for testicular germ cell tumors [73] (r2 = 0.824) and the e2QTL for PIP4K2A upon MMS exposure represents a GWAS risk variant for B cell acute lymphoblastic leukaemia (ALL) [74] (r2 = 0.761).