MMP20 and neuroblastoma: As the 11q22.2 region harboring MMP20 is commonly deleted in 11q-deletion neuroblastomas, we investigated 11q-deletion cases that are heterozygous (G/A) for rs10895322 and found that the risk allele (G) is preferentially retained in tumors (P = 2.09 × 10−3, binomial test).