MYCN and neuroblastoma: In neuroblastoma, the DRB1-DRB3/DRB1-DRB4 genotype was found in nine out of 14 (64.3%) MYCN-A and eight out of 20 (40%) 11qLOH cases but only 12 out of 56 (21.4%) MYCN-NA and 13 out of 50 (26%) 11qWT cases, respectively (Figures 3A, B; Supplementary Tables S7B, C).