Provided that this difference is not caused by the distinct characteristics of the two mAbs used to measure the expression level of the gene products of HLA-A and of HLA-B and C loci, it may reflect the different characteristics of the tumor antigens presented by HLA-A antigens and by HLA-B and C antigens including but not limited to their range of specificity and to their immunogenicity

Provided that this difference is not caused by the distinct characteristics of the two mAbs used to measure the expression […]