We also analyzed the correlation between HLA molecules in 39 children with BCP-ALL and the same 136 healthy juveniles studied above, discovering a relationship solely with HLA class II molecules—DRB1*01 and DQB1*05—as demonstrated in Table 6, Table 7, Table 8 and Table 9 and Figure 5 and Figure 6 below. This evidence concerns the gene HLA-DRB1 and acute lymphoblastic leukemia.