Previously, we showed that the human G → T polymorphism at the rs2168101 locus within the first intron of the LMO1 gene comprised either a guanine (G) — coding for a permissive allele associated with increased risk of developing neuroblastoma — or a thymine (T) — coding for an allele protective of the development of neuroblastoma (20). The gene discussed is LMO1; the disease is neuroblastoma.