HLA-G and B-cell chronic lymphocytic leukemia: When the correlation between SNP alleles and clinical parameters were analyzed (Rai stage, morphology, levels of serum markers such as β2-microglobulin or lactate dehydrogenase, presence of genomic aberrations, marrow infiltration, presence of adenopathy, lymphocyte doubling time, residual minimum disease, and treatment) no significant association was found in CLL patients (S6 Table).