HLA-C and neoplasm: The criteria used for ranking (and in order of weighting) were demonstrable therapeutic function of antigen, known immunogenicity, oncogenic function, whether antigen is expressed widely or uniquely by tumour cells, expression level of antigen within tumours, expression by tumour stem cells, the number of patients with antigen positive cells, the number of epitopes of the tumour antigen and whether it is able to bind to multiple MHC molecule, and finally the cellular location of the antigen.